WO2024055673A1

WO2024055673A1 - Measurement apparatus and electronic device

Info

Publication number: WO2024055673A1
Application number: PCT/CN2023/102062
Authority: WO
Inventors: 郭国典
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-09-13
Filing date: 2023-06-25
Publication date: 2024-03-21
Also published as: CN115435668A

Abstract

A measurement apparatus (100), comprising: a fixed end (11) comprising a transmitting coil (111) and a receiving coil (112); a movable end (12) moving relative to the fixed end (11) and comprising a metal conductor (121); and a processor (13) separately coupled to the transmitting coil (111) and the receiving coil (112), wherein when the movable end (12) moves relative to the fixed end (11), the processor (13) applies an alternating signal to the transmitting coil (111), the movable end (12) generates an alternating magnetic field in response to the alternating signal, the receiving coil (112) senses the alternating magnetic field to generate a sensing signal and transmits the sensing signal to the processor (13), and the processor (13) determines the amount of movement of the movable end (12) relative to the fixed end (11) according to the sensing signal. A first sensing signal and a second sensing signal are generated by using the transmitting coil (111), the receiving coil (112) and the metal conductor (121), metal interference can be resisted, the reliability of displacement measurement is improved, and the reliability of the measurement apparatus (100) is further improved. Also provided is an electronic device comprising the measurement apparatus (100).

Description

测量装置及电子设备Measuring devices and electronic equipment

相关申请的交叉引用Cross-references to related applications

本申请基于申请号为202211112212.X、申请日为2022年09月13日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以全文引用的方式引入本申请。This application is filed based on the Chinese patent application with application number 202211112212. this application.

技术领域Technical field

本申请涉及位移测量技术，尤其涉及一种测量装置及具备测量装置的电子设备。The present application relates to displacement measurement technology, and in particular, to a measuring device and electronic equipment equipped with the measuring device.

背景技术Background technique

目前，利用霍尔(hall)传感器阵列检测移动磁铁的磁场强度值，磁铁在每个霍尔传感器处的磁场强度值大小不一样，可以通过这个大小关系，把磁铁确定在某一个霍尔传感器的范围，通过校准把磁场强度值和位移一一对应，就可以通过磁感应强度得到磁铁移动的位移量。Currently, a Hall sensor array is used to detect the magnetic field strength value of a moving magnet. The magnetic field strength value of the magnet at each Hall sensor is different. Through this size relationship, the magnet can be determined to be at a certain Hall sensor. Range, by calibrating the one-to-one correspondence between the magnetic field intensity value and the displacement, the displacement amount of the magnet movement can be obtained through the magnetic induction intensity.

通常利用隧道磁电阻(Tunnel Magneto Resistance，TMR)/巨磁电阻(Giant Magneto Resistance，GMR)/各向异性磁电阻(Anisotropic Magneto Resistance，AMR)hall传感器，采集磁铁阵列的磁感方向，当磁铁同传感器靠近放置时，传感器可以通过TMR/GMR/AMR效应得到磁场的方向，当磁铁移动时，会在AMR传感器上方形成不同的磁场方向，TMR/GMR/AMR传感器的X、Y两个方向的磁场强度呈现标准的正弦/余弦关系，从而两者相除可以得到磁场角。因为测量的是磁场角度，所以对于磁铁的磁场大小一致性，磁场衰退，结构公差等不敏感，进而通过线性映射为位移量。Tunnel Magneto Resistance (TMR)/Giant Magneto Resistance (GMR)/Anisotropic Magneto Resistance (AMR) hall sensors are usually used to collect the magnetic induction direction of the magnet array. When the sensor is placed close to the sensor, the sensor can obtain the direction of the magnetic field through the TMR/GMR/AMR effect. When the magnet moves, different magnetic field directions will be formed above the AMR sensor. The magnetic fields in the X and Y directions of the TMR/GMR/AMR sensor The intensity exhibits a standard sine/cosine relationship, so dividing the two gives the magnetic field angle. Because what is measured is the angle of the magnetic field, it is not sensitive to the magnetic field size consistency, magnetic field decay, structural tolerance, etc. of the magnet, and is then linearly mapped to the displacement.

然而，上述传感器都依赖磁铁，对磁干扰明显，外部有磁场会影响其测量准确性，甚至导致其失效。AMR/GMR/TMR传感器依赖强磁铁，强磁场可能会影响某些器件的正常工作。而且磁铁本身存在衰减，同时跌落磁场也会衰减。因此，现有的位移测量手段存在不可靠的技术问题。However, the above-mentioned sensors all rely on magnets, which have obvious magnetic interference. External magnetic fields will affect their measurement accuracy and even cause their failure. AMR/GMR/TMR sensors rely on strong magnets, and strong magnetic fields may affect the normal operation of some devices. Moreover, the magnet itself has attenuation, and the magnetic field will also attenuate when it is dropped. Therefore, existing displacement measurement methods have unreliable technical problems.

发明内容Contents of the invention

一方面，本申请实施例提供一种测量装置，包括：On the one hand, embodiments of the present application provide a measurement device, including:

定端，所述定端包括发送线圈和接收线圈；Fixed end, the fixed end includes a transmitting coil and a receiving coil;

能够相对于所述定端移动的动端，所述动端包括金属导体；以及a moving end capable of moving relative to the fixed end, the moving end including a metal conductor; and

处理器，所述处理器分别与所述发送线圈和所述接收线圈耦合，其中，a processor coupled to the transmit coil and the receive coil respectively, wherein,

当所述动端相对于所述定端移动时，所述处理器向所述发送线圈施加交变信号，所述动端响应于所述交变信号产生交变磁场，所述接收线圈感应所述交变磁场产生感应信号并传输至所述处理器，所述处理器根据所述感应信号确定所述动端相对于所述定端的移动量。When the moving end moves relative to the fixed end, the processor applies an alternating signal to the transmitting coil, the moving end generates an alternating magnetic field in response to the alternating signal, and the receiving coil senses The alternating magnetic field generates an induction signal and transmits it to the processor, and the processor determines the movement amount of the moving end relative to the fixed end based on the induction signal.

另一方面，本申请实施例提供一种电子设备，包括上述的测量装置、第一壳体、第二壳体和柔性屏；其中，On the other hand, embodiments of the present application provide an electronic device, including the above-mentioned measuring device, a first housing, a second housing and a flexible sex screen; among them,

所述第二壳体可滑动地连接至所述第一壳体，所述柔性屏连接在第一壳体和第二壳体上且能够随所述第二壳体相对所述第一壳体的滑动而展开或收缩。The second housing is slidably connected to the first housing, and the flexible screen is connected to the first housing and the second housing and can be relative to the first housing with the second housing. expand or contract by sliding.

附图说明Description of drawings

图1为本申请实施例提供的一种测量装置的组成示意图；Figure 1 is a schematic diagram of the composition of a measuring device provided by an embodiment of the present application;

图2为本申请实施例提供的一种定端的实例一的结构示意图；Figure 2 is a schematic structural diagram of Example 1 of a fixed end provided by the embodiment of the present application;

图3为本申请实施例提供的一种测量装置的实例一的电路示意图；Figure 3 is a circuit schematic diagram of Example 1 of a measuring device provided by the embodiment of the present application;

图4为本申请实施例提供的一种定端的实例二的结构示意图；Figure 4 is a schematic structural diagram of Example 2 of a fixed end provided by the embodiment of the present application;

图5为本申请实施例提供的一种感应信号的实例一的波形图；Figure 5 is a waveform diagram of Example 1 of a sensing signal provided by the embodiment of the present application;

图6为本申请实施例提供的一种感应信号的实例二的波形图；Figure 6 is a waveform diagram of Example 2 of a sensing signal provided by the embodiment of the present application;

图7为本申请实施例提供的一种感应信号的实例三的波形图；Figure 7 is a waveform diagram of Example 3 of a sensing signal provided by the embodiment of the present application;

图8为本申请实施例提供的一种感应信号的实例四的波形图；Figure 8 is a waveform diagram of Example 4 of a sensing signal provided by the embodiment of the present application;

图9为本申请实施例提供的一种相位角的示意图；Figure 9 is a schematic diagram of a phase angle provided by an embodiment of the present application;

图10为本申请实施例提供的一种感应信号和子感应信号的波形图；Figure 10 is a waveform diagram of an induction signal and a sub-induction signal provided by an embodiment of the present application;

图11为本申请实施例提供的一种测量装置的实例二的立体结构示意图；Figure 11 is a schematic three-dimensional structural diagram of Example 2 of a measuring device provided by the embodiment of the present application;

图12为本申请实施例提供的一种定端的实例三的结构示意图；Figure 12 is a schematic structural diagram of Example 3 of a fixed end provided by the embodiment of the present application;

图13为本申请实施例提供的一种定端的实例四的结构示意图；Figure 13 is a schematic structural diagram of Example 4 of a fixed end provided by the embodiment of the present application;

图14为本申请实施例提供的一种测量装置的实例三的结构示意图；Figure 14 is a schematic structural diagram of Example 3 of a measuring device provided by the embodiment of the present application;

图15为本申请实施例提供的一种测量装置的实例四的结构示意图；Figure 15 is a schematic structural diagram of Example 4 of a measuring device provided by the embodiment of the present application;

图16为本申请实施例提供的一种电子设备的组成示意图；Figure 16 is a schematic diagram of the composition of an electronic device provided by an embodiment of the present application;

图17为本申请实施例提供的一种测量方法的流程示意图；Figure 17 is a schematic flow chart of a measurement method provided by an embodiment of the present application;

图18为本申请实施例提供的一种电子设备的组成框图。Figure 18 is a block diagram of an electronic device provided by an embodiment of the present application.

附图标记：
100-测量装置，11-定端，111-发送线圈，112-接收线圈，12-动端，121-金属导体，13-处理器；
200-定端，21-PCB的板框，22-发送线圈，23-接收线圈，24-接收线圈；
31-动端，32-定端，33-处理电路，331-模拟开关解调器，332-放大器，333-半桥，334-低通滤波
器，335-微控制单元(Microcontroller Unit，MCU)，336-低压差线性稳压器(Low Dropout Regulator，LDO)，337-电平转换(Level Shift)，338-应用处理器(Application Processor，AP)；
41-发送线圈，42-接收线圈；
101-接收线圈，102-接收线圈，103-子接收线圈；
111-定端，112-动端；
121-发送线圈，122-接收线圈，123-接收线圈；
131-子接收线圈，132-子接收线圈；
141-动端，142-定端；
151-角度编码器，152-电机，153-传动机构连接屏幕；
1600-电子设备，161-测量装置，162-第一壳体，163-第二壳体，164-柔性屏；
1800-电子设备，181-处理器，182-存储介质，183-通信总线。Reference signs:
100-measuring device, 11-fixed end, 111-sending coil, 112-receiving coil, 12-moving end, 121-metal conductor, 13-processor;
200-fixed end, 21-PCB board frame, 22-sending coil, 23-receiving coil, 24-receiving coil;
31-Dynamic end, 32-Fixed end, 33-Processing circuit, 331-Analog switching demodulator, 332-Amplifier, 333-Half bridge, 334-Low-pass filter, 335-Microcontroller Unit (MCU) , 336-Low Dropout Regulator (LDO), 337-Level Shift, 338-Application Processor (AP);
41-sending coil, 42-receiving coil;
101-receiving coil, 102-receiving coil, 103-sub-receiving coil;
111-fixed end, 112-moving end;
121-sending coil, 122-receiving coil, 123-receiving coil;
131-sub-receiving coil, 132-sub-receiving coil;
141-moving end, 142-fixed end;
151-angle encoder, 152-motor, 153-transmission mechanism connection screen;
1600-Electronic equipment, 161-Measuring device, 162-First housing, 163-Second housing, 164-Flexible screen;
1800-Electronic equipment, 181-Processor, 182-Storage medium, 183-Communication bus.

具体实施方式Detailed ways

本申请实施例提供了一种测量装置，包括：The embodiment of the present application provides a measuring device, including:

当所述动端相对于所述定端移动时，所述处理器向所述发送线圈施加交变信号，所述金属导体响应于所述交变信号产生交变磁场，所述接收线圈感应所述交变磁场产生感应信号并传输至所述处理器，所述处理器根据所述感应信号确定所述动端相对于所述定端的移动。When the moving end moves relative to the fixed end, the processor applies an alternating signal to the transmitting coil, the metal conductor generates an alternating magnetic field in response to the alternating signal, and the receiving coil induces The alternating magnetic field generates an induction signal and transmits it to the processor, and the processor determines the movement of the moving end relative to the fixed end based on the induction signal.

在一种可选的实施例中，所述接收线圈包括第一接收线圈和第二接收线圈，所述第一接收线圈包括彼此连接的第一线圈和第二线圈，所述第二接收线圈包括彼此连接的第三线圈和第四线圈，所述第一线圈、所述第二线圈、所述第三线圈和所述第四线圈均呈正弦波形状排布，所述第一线圈与所述第二线圈的相位角相差π，所述第一线圈与所述第三线圈的相位角相差π/2，所述第三线圈与所述第四线圈的相位角相差π，In an optional embodiment, the receiving coil includes a first receiving coil and a second receiving coil, the first receiving coil includes a first coil and a second coil connected to each other, and the second receiving coil includes The third coil and the fourth coil are connected to each other. The first coil, the second coil, the third coil and the fourth coil are all arranged in a sinusoidal shape. The first coil and the The phase angle difference of the second coil is π, the phase angle difference of the first coil and the third coil is π/2, the phase angle difference of the third coil and the fourth coil is π,

所述第一接收线圈感应所述交变磁场以产生第一感应信号，所述第二接收线圈感应所述交变磁场以产生第二感应信号，所述处理器根据所述第一感应信号和所述第二感应信号确定所述动端相对于所述定端的移动量。The first receiving coil induces the alternating magnetic field to generate a first induction signal, the second receiving coil induces the alternating magnetic field to generate a second induction signal, and the processor responds to the first induction signal and The second sensing signal determines the movement amount of the moving end relative to the fixed end.

在一种可选的实施例中，所述发送线圈设置为矩形框状，所述接收线圈在所述发送线圈内侧以正弦波形式呈直线状排布。In an optional embodiment, the transmitting coil is arranged in a rectangular frame shape, and the receiving coils are linearly arranged in the form of sinusoidal waves inside the transmitting coil.

在一种可选的实施例中，所述接收线圈在所述发送线圈内侧以一个正弦波形式呈直线状排布。In an optional embodiment, the receiving coil is arranged in a straight line in the form of a sine wave inside the transmitting coil.

在一种可选的实施例中，所述动端相对于所述定端的移动轨迹为直线，所述处理器被构造成：In an optional embodiment, the movement trajectory of the moving end relative to the fixed end is a straight line, and the processor is configured to:

分别对所述第一感应信号和所述第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号；Perform demodulation processing and filtering processing on the first induction signal and the second induction signal respectively to obtain a processed first induction signal and a processed second induction signal;

利用所述处理后的第一感应信号和所述处理后的第二感应信号，计算得到所述动端在所述定端上的位置对应于所述第一线圈的相位角；Using the processed first induction signal and the processed second induction signal, calculating a phase angle of the first coil corresponding to the position of the moving end on the fixed end;

基于所述相位角和所述第一线圈的波长，确定所述移动量。The amount of movement is determined based on the phase angle and the wavelength of the first coil.

在一种可选的实施例中，所述第一线圈的相位角的角度在0-2π之间。In an optional embodiment, the phase angle of the first coil is between 0-2π.

在一种可选的实施例中，所述基于所述相位角和所述第一线圈的波长，确定所述移动量，包括：In an optional embodiment, determining the movement amount based on the phase angle and the wavelength of the first coil includes:

将所述第一线圈的相位角的角度与2π的比值，与所述测量装置的总量程的乘积，确定为所述移动量。 The movement amount is determined as the product of the ratio of the phase angle of the first coil to 2π and the total range of the measuring device.

在一种可选的实施例中，所述测量装置的总量程等于呈正弦波排布的第一线圈的波长。In an optional embodiment, the total range of the measuring device is equal to the wavelength of the first coil arranged in a sinusoidal waveform.

在一种可选的实施例中，所述发送线圈设置为圆环状，所述接收线圈在所述发送线圈内侧以正弦波形式呈圆环状排布。In an optional embodiment, the transmitting coil is configured to be in a circular ring shape, and the receiving coil is arranged in a circular ring shape in a sinusoidal wave form inside the transmitting coil.

在一种可选的实施例中，所述动端相对于所述定端的移动轨迹为圆周，所述处理器被构造成：In an optional embodiment, the movement trajectory of the moving end relative to the fixed end is a circle, and the processor is configured to:

分别对所述第一感应信号和所述第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号；Performing demodulation processing and filtering processing on the first sensing signal and the second sensing signal respectively to obtain a processed first sensing signal and a processed second sensing signal;

利用所述处理后的第一感应信号和所述处理后的第二感应信号，计算得到所述动端相对于所述定端的旋转角度；以及Using the processed first induction signal and the processed second induction signal, calculate the rotation angle of the moving end relative to the fixed end; and

基于所述旋转角度和所述第一线圈的周长，确定所述移动量。The amount of movement is determined based on the rotation angle and the circumference of the first coil.

在一种可选的实施例中，所述基于所述旋转角度和所述第一线圈的周长，确定为所述移动量，包括：In an optional embodiment, the movement amount determined based on the rotation angle and the circumference of the first coil includes:

基于2π与所述第一线圈的周长之间的比例关系，根据所述旋转角度确定所述移动量。The amount of movement is determined based on the rotation angle based on a proportional relationship between 2π and the circumference of the first coil.

在一种可选的实施例中，所述金属导体呈棱柱状；In an optional embodiment, the metal conductor is in a prismatic shape;

或者，所述金属导体呈圆柱状。Alternatively, the metal conductor is cylindrical.

在一种可选的实施例中，所述金属导体包括圆柱状的部分和沿所述圆柱状的部分的周向均匀设置的多个凸部。In an optional embodiment, the metal conductor includes a cylindrical portion and a plurality of convex portions evenly arranged along the circumferential direction of the cylindrical portion.

在一种可选的实施例中，所述定端还包括相邻排布的至少两个子接收线圈，各所述子接收线圈对应不同范围的移动量；其中，所述处理器分别与所述至少两个子接收线圈耦合，其中，所述处理器被构造成：In an optional embodiment, the fixed end further includes at least two sub-receiving coils arranged adjacently, and each of the sub-receiving coils corresponds to a different range of movement; wherein the processor is configured with the At least two sub-receiving coils are coupled, wherein the processor is configured to:

确定所述移动量所对应的子接收线圈；Determine the sub-receiving coil corresponding to the movement amount;

根据所述对应的子接收线圈的感应信号重新确定所述动端相对于所述定端的移动量。The movement amount of the moving end relative to the fixed end is re-determined based on the induction signal of the corresponding sub-receiving coil.

在一种可选的实施例中，每个所述子接收线圈包括：第一子接收线圈和第二子接收线圈，所述第一子接收线圈包括彼此连接的第一子线圈和第二子线圈，用于感应所述交变磁场以产生第一子感应信号，所述第二子接收线圈包括彼此连接的第三子线圈和第四子线圈，用于感应所述交变磁场以产生第二子感应信号，所述第一子线圈、所述第二子线圈、所述第三子线圈和所述第四子线圈均呈正弦波的形状排布，所述第一子线圈与所述第二子线圈的相位角相差π，所述第一子线圈与所述第三子线圈的相位角相差π/2，所述第三子线圈与所述第四子线圈的相位角相差π；In an optional embodiment, each of the sub-receiving coils includes: a first sub-receiving coil and a second sub-receiving coil, and the first sub-receiving coil includes a first sub-coil and a second sub-coil connected to each other. A coil is used to induce the alternating magnetic field to generate a first sub-induction signal. The second sub-receiving coil includes a third sub-coil and a fourth sub-coil connected to each other, and is used to induce the alternating magnetic field to generate a third sub-induction signal. Two sub-induction signals, the first sub-coil, the second sub-coil, the third sub-coil and the fourth sub-coil are all arranged in the shape of a sine wave, the first sub-coil and the The phase angle difference of the second sub-coil is π, the phase angle difference of the first sub-coil and the third sub-coil is π/2, and the phase angle difference of the third sub-coil and the fourth sub-coil is π;

所述处理器还用于：The processor is also used to:

从所述第一子接收线圈接收所述第一子感应信号，从所述第二子接收线圈接收所述第二子感应信号，以及根据所述第一子感应信号和所述第二子感应信号重新确定所述动端相对于所述定端的移动量。The first sub-induction signal is received from the first sub-receiving coil, the second sub-induction signal is received from the second sub-receiving coil, and the first sub-induction signal and the second sub-induction signal are received from the first sub-receiving coil. The signal re-determines the movement amount of the moving end relative to the fixed end.

在一种可选的实施例中，所述发送线圈和所述接收线圈采用PCB走线排布。In an optional embodiment, the transmitting coil and the receiving coil are arranged using PCB traces.

在一种可选的实施例中，所述发送线圈和所述接收线圈排布于同一平面上。In an optional embodiment, the transmitting coil and the receiving coil are arranged on the same plane.

本申请实施例提供了一种电子设备，包括：上述一个或多个实施例所述的测量装置、第一壳体、第二壳体和柔性屏；其中，An embodiment of the present application provides an electronic device, including: the measurement device described in one or more of the above embodiments, a first housing, The second housing and the flexible screen; wherein,

在一种可选的实施例中，所述定端设置在所述第一壳体上，所述动端设置在所述第二壳体上，所述测量装置为权利要求3或4中所述的测量装置；随着所述第二壳体相对于所述第一壳体的滑动，所述动端相对于所述定端作直线移动。In an optional embodiment, the fixed end is provided on the first housing, the moving end is provided on the second housing, and the measuring device is as claimed in claim 3 or 4. The above-mentioned measuring device; as the second housing slides relative to the first housing, the moving end moves linearly relative to the fixed end.

在一种可选的实施例中，还包括用于驱动所述第二壳体相对于所述第一壳体滑动的电机，所述定端与所述电机的输出轴相连接，所述测量装置为权利要求5或6所述的测量装置；随着所述电机的输出轴的转动，所述动端相对于所述定端作圆周运动。In an optional embodiment, it also includes a motor for driving the second housing to slide relative to the first housing, the fixed end is connected to the output shaft of the motor, and the measuring The device is the measuring device according to claim 5 or 6; as the output shaft of the motor rotates, the moving end makes a circular motion relative to the fixed end.

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

本申请实施例提供了一种测量装置，图1为本申请实施例提供的一种测量装置的组成示意图，如图1所示，该测量装置100包括：定端11，定端11包括发送线圈111和接收线圈112，能够相对于定端移动的动端12，动端12包括金属导体121；以及，处理器13，处理器13分别与发送线圈111和接收线圈112耦合，其中，当动端12相对于定端11移动时，处理器13向发送线圈111施加交变信号，动端12响应于交变信号产生交变磁场，接收线圈112感应交变磁场产生感应信号并传输至处理器13，处理器13根据感应信号确定动端12相对于定端11的移动量。The embodiment of the present application provides a measuring device. Figure 1 is a schematic diagram of the composition of a measuring device provided by the embodiment of the present application. As shown in Figure 1, the measuring device 100 includes: a fixed end 11, and the fixed end 11 includes a transmitting coil. 111 and the receiving coil 112, the moving end 12 that can move relative to the fixed end, the moving end 12 includes a metal conductor 121; and the processor 13, the processor 13 is coupled to the sending coil 111 and the receiving coil 112 respectively, wherein when the moving end When 12 moves relative to the fixed end 11, the processor 13 applies an alternating signal to the transmitting coil 111. The moving end 12 generates an alternating magnetic field in response to the alternating signal. The receiving coil 112 induces the alternating magnetic field to generate an induction signal and transmits it to the processor 13 , the processor 13 determines the movement amount of the moving end 12 relative to the fixed end 11 according to the sensing signal.

目前，不管是利用hall传感器阵列来测量位移，还是利用TMR/GMR/AMR hall传感器来测量位移，都是依赖磁铁，hall传感器阵列，对磁干扰明显，外部有磁场会影响其测量准确性，甚至导致其失效；AMR/GMR/TMR传感器依赖强磁铁，强磁对其他的器件干扰，比如***的DC-DC变换器对磁场敏感的器件，如果磁铁距离近，可能会影响其工作，磁铁本身存在衰减，同时跌落磁场也会受衰减，可靠性不够好。At present, whether the hall sensor array is used to measure displacement, or the TMR/GMR/AMR hall sensor is used to measure displacement, both rely on magnets. The hall sensor array has obvious magnetic interference. External magnetic fields will affect its measurement accuracy, and even Causes its failure; AMR/GMR/TMR sensors rely on strong magnets, and strong magnets interfere with other devices, such as peripheral DC-DC converters that are sensitive to magnetic fields. If the magnet is close, it may affect its work. The presence of the magnet itself Attenuation, and the dropped magnetic field will also be attenuated, and the reliability is not good enough.

为了提高位移测量的可靠性，本申请实施例提供一种测量装置100，测量装置100由三部分构成，分别为包括有发送线圈111和接收线圈112的定端11，包括金属导体121的动端12，以及处理器13，当动端12相对于定端11移动时，处理器13通过给发送线圈111施加的交变信号，使得动端12中的金属导体121产生涡流效应并随之产生交变磁场，这样，通过接收线圈112可以感应到交变磁场所产生的感应信号，可以通过设置发送线圈111和接收线圈112的排布形状，知晓感应信号与动端12相对于定端的移动量之间的关系，最终使得处理器13利用该关系可以根据感应信号确定出动端12相对于定端11的移动量。In order to improve the reliability of displacement measurement, an embodiment of the present application provides a measuring device 100. The measuring device 100 is composed of three parts, a fixed end 11 including a transmitting coil 111 and a receiving coil 112, and a moving end including a metal conductor 121. 12, and the processor 13. When the moving end 12 moves relative to the fixed end 11, the processor 13 applies an alternating signal to the sending coil 111, causing the metal conductor 121 in the moving end 12 to generate an eddy current effect and subsequently generate an alternating current. In this way, the induction signal generated by the alternating magnetic field can be sensed through the receiving coil 112. By setting the arrangement shape of the sending coil 111 and the receiving coil 112, the relationship between the induction signal and the movement amount of the moving end 12 relative to the fixed end can be known. Finally, the processor 13 can use this relationship to determine the movement amount of the output end 12 relative to the fixed end 11 based on the sensing signal.

如此，利用电磁感应原理和电涡流效应原理所产生的感应信号来测量移动量，能够提高位移测量的可靠性。In this way, using the induction signal generated by the principle of electromagnetic induction and the principle of eddy current effect to measure the amount of movement can improve the reliability of displacement measurement.

进一步地，为了实现对位移的测量，需要排布发送线圈111和接收线圈112，以利用感应信号与动端12相对于定端11的移动量之间的关系来确定移动量，这里，可以利用正弦波的方式来排布接收线圈112，当然也可以采用其他排布形式来排布接收线圈112，本申请实施例对此不作具体限定。Furthermore, in order to measure the displacement, the sending coil 111 and the receiving coil 112 need to be arranged to determine the movement amount using the relationship between the induction signal and the movement amount of the moving end 12 relative to the fixed end 11. Here, you can use The receiving coils 112 are arranged in a sinusoidal wave manner. Of course, the receiving coils 112 can also be arranged in other arrangements. This is not specifically limited in the embodiment of the present application.

另外，在采用正弦波的方式来排布接收线圈112中，可以采用一个正弦波的部分波形来排布接收线圈112，也可以采用一整个正弦波来排布接收线圈112，还可以采用一个以上的正弦波来排布接收线圈112，本申请实施例对此不作具体限定。In addition, when arranging the receiving coil 112 in a sine wave manner, a partial waveform of a sine wave can be used to arrange the receiving coil 112 . For the receiving coil 112, a whole sine wave can also be used to arrange the receiving coil 112, or more than one sine wave can be used to arrange the receiving coil 112. This is not specifically limited in the embodiment of the present application.

针对接收线圈112采用正弦波的形状排布的情况，在一种可选的实施例中，接收线圈112包括第一接收线圈和第二接收线圈，第一接收线圈包括彼此连接的第一线圈和第二线圈，第二接收线圈包括彼此连接的第三线圈和第四线圈，第一线圈、第二线圈、第三线圈和第四线圈均呈正弦波形状排布，第一线圈与第二线圈的相位角相差π，第一线圈与第三线圈的相位角相差π/2，第三线圈与第四线圈的相位角相差π，第一接收线圈感应交变磁场以产生第一感应信号，第二接收线圈感应交变磁场以产生第二感应信号，处理器根据第一感应信号和第二感应信号确定动端相对于定端的移动量。For the case where the receiving coil 112 is arranged in a sinusoidal shape, in an optional embodiment, the receiving coil 112 includes a first receiving coil and a second receiving coil, and the first receiving coil includes a first coil and a second receiving coil connected to each other. The second coil, the second receiving coil includes a third coil and a fourth coil connected to each other. The first coil, the second coil, the third coil and the fourth coil are all arranged in a sinusoidal shape. The first coil and the second coil The phase angle difference is π, the phase angle difference between the first coil and the third coil is π/2, the phase angle difference between the third coil and the fourth coil is π, the first receiving coil induces an alternating magnetic field to generate the first induction signal, The two receiving coils induce the alternating magnetic field to generate a second induction signal, and the processor determines the movement amount of the moving end relative to the fixed end based on the first induction signal and the second induction signal.

图2为本申请实施例提供的一种定端的实例一的结构示意图，可以理解地，接收线圈112可以包括两个，分别为第一接收线圈和第二接收线圈，且第一接收线圈包括彼此相连接的两个线圈，第一线圈和第二线圈，如图2所示，第一线圈为填充为黑色的圆圈所在的正弦波曲线，第二线圈为填充为白色圆圈所在的正弦波曲线，同样地，第二接收线圈也包括彼此相连接的两个线圈，即第三线圈和第四线圈，如图2所示，第三线圈为填充为斜线的圆圈所在的正弦波曲线，第四线圈为填充为横线的圆圈所在的正弦波曲线，四个线圈中任意两个线圈之间有相位差，其中，第一线圈与第二线圈的相位角相差π，第一线圈与第三线圈的相位角相差π/2，第三线圈与第四线圈的相位角相差π，这样，将接收线圈112如此排布，使得接收线圈112接收到的第一感应信号和第二感应信号，与动端12相对于定端11的移动量之间呈特定关系，利用该关系可以根据接收线圈112接收到的第一感应信号和第二感应信号计算得到移动量。FIG. 2 is a schematic structural diagram of Example 1 of a fixed end provided by the embodiment of the present application. It can be understood that the receiving coil 112 may include two, namely a first receiving coil and a second receiving coil, and the first receiving coil includes each other. The two connected coils, the first coil and the second coil, are as shown in Figure 2. The first coil is a sine wave curve filled with a black circle, and the second coil is a sine wave curve filled with a white circle. Similarly, the second receiving coil also includes two coils connected to each other, namely the third coil and the fourth coil. As shown in Figure 2, the third coil is the sine wave curve where the circle filled with diagonal lines is located, and the fourth coil is The coil is a sine wave curve where the circle filled with a horizontal line is located. There is a phase difference between any two coils among the four coils. Among them, the phase angle difference between the first coil and the second coil is π, and the phase angle difference between the first coil and the third coil is π. The phase angle difference of the third coil and the fourth coil is π/2, and the phase angle difference of the third coil and the fourth coil is π. In this way, the receiving coil 112 is arranged in such a way that the first induction signal and the second induction signal received by the receiving coil 112 are consistent with the moving There is a specific relationship between the movement amount of the end 12 relative to the fixed end 11. This relationship can be used to calculate the movement amount based on the first induction signal and the second induction signal received by the receiving coil 112.

为了更好地实现位移测量，在一种可选的实施例中，发送线圈111设置为矩形框状；接收线圈112在发送线圈111内侧以正弦波形式呈直线状排布。In order to better realize displacement measurement, in an optional embodiment, the transmitting coil 111 is set in a rectangular frame shape; the receiving coils 112 are arranged in a straight line in the form of a sine wave inside the transmitting coil 111 .

也就是说，将发送线圈111围绕接收线圈112排布，这样，发送线圈111可以通过处理器13施加的交变信号，使得动端12中的金属导体121产生涡流效应并随之产生交变磁场，这里的发送线圈111排布形状可以为规则形状，也可以为不规则形状，例如，矩形框或者圆环状，本申请实施例对此不作具体限定。That is to say, the transmitting coil 111 is arranged around the receiving coil 112. In this way, the transmitting coil 111 can use the alternating signal applied by the processor 13 to cause the metal conductor 121 in the moving end 12 to generate an eddy current effect and subsequently generate an alternating magnetic field. , the arrangement shape of the transmitting coil 111 here may be a regular shape or an irregular shape, such as a rectangular frame or a circular ring shape, which is not specifically limited in the embodiment of the present application.

进一步地，为了提高位移测量精度，将发送线圈111以矩形框的形状围绕接收线圈112排布，将第一接收线圈和第二接收线圈排布至矩形框内，这样，整个定端12整体为一个矩形，在对测量对象进行位移测量时，矩形的定端12更易于与测量对象整合放置以进行位移测量，有利于应用于电子设备的内部，实现对位移的测量。Further, in order to improve the displacement measurement accuracy, the sending coil 111 is arranged in the shape of a rectangular frame around the receiving coil 112, and the first receiving coil and the second receiving coil are arranged in the rectangular frame. In this way, the entire fixed end 12 is A rectangle, when measuring the displacement of a measurement object, the fixed end 12 of the rectangle is easier to be integrated with the measurement object for displacement measurement, which is beneficial to be applied inside the electronic device to achieve the measurement of displacement.

需要说明的是，当发送线圈111呈矩形框状时，呈正弦波形状排布的第一线圈、第二线圈、第三线圈和第四线圈为在直角坐标系下的正弦波形状。It should be noted that when the transmitting coil 111 is in the shape of a rectangular frame, the first coil, the second coil, the third coil and the fourth coil arranged in a sine wave shape are sine wave shapes in a rectangular coordinate system.

在上述矩形框状的发送线圈111下，为了计算得到移动量，在一种可选的实施例中，动端12相对于定端11的移动轨迹为直线，处理器13被构造成：Under the above-mentioned rectangular frame-shaped transmitting coil 111, in order to calculate the movement amount, in an optional embodiment, the movement trajectory of the moving end 12 relative to the fixed end 11 is a straight line, and the processor 13 is configured as follows:

分别对第一感应信号和第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号； Perform demodulation processing and filtering processing on the first induction signal and the second induction signal respectively to obtain the processed first induction signal and the processed second induction signal;

利用处理后的第一感应信号和处理后的第二感应信号，计算得到动端在定端上的位置对应于第一线圈的相位角；Using the processed first induction signal and the processed second induction signal, calculate the position of the moving end on the fixed end corresponding to the phase angle of the first coil;

基于相位角和第一线圈的波长，确定移动量。Based on the phase angle and the wavelength of the first coil, the amount of movement is determined.

可以理解地，当动端12在接收线圈112的延伸方向滑动的滑动轨迹为直线时，说明接收线圈112按照直线延伸，那么，动端12相对于定端11的移动轨迹为直线，所以，处理器13为了确定出移动量，先分别对第一感应信号和第二感应信号进行解调处理和滤波处理，从而可以得到处理后的第一感应信号和处理后的第二感应信号，由于第一感应线圈和第二感应线圈采用正弦波的排布方式，使得处理后的第一感应信号随着位置的变化呈正弦变化，处理后的第二感应信号随着位置的变化呈余弦变化，那么可以根据处理后的第一感应信号和处理后的第二感应信号，知晓动端12在定端11上的位置对应于第一线圈的相位角的正弦值、余弦值和正切值，那么，在0-2π范围内运用反三角函数可以确定出唯一的一个角度值，即为动端12在定端11上的位置对应于第一线圈的相位角。It can be understood that when the sliding trajectory of the moving end 12 in the extension direction of the receiving coil 112 is a straight line, it means that the receiving coil 112 extends along a straight line. Then, the moving trajectory of the moving end 12 relative to the fixed end 11 is a straight line. Therefore, the process In order to determine the movement amount, the device 13 first performs demodulation processing and filtering processing on the first induction signal and the second induction signal respectively, so that the processed first induction signal and the processed second induction signal can be obtained. Since the first induction signal The induction coil and the second induction coil adopt a sine wave arrangement, so that the processed first induction signal changes sinusoidally with the change of position, and the processed second induction signal changes cosine with the change of position, then it can According to the processed first induction signal and the processed second induction signal, it is known that the position of the moving end 12 on the fixed end 11 corresponds to the sine value, cosine value and tangent value of the phase angle of the first coil, then, at 0 A unique angle value can be determined by using the inverse trigonometric function within the range of -2π, which is the phase angle of the position of the moving end 12 on the fixed end 11 corresponding to the first coil.

在知晓动端12在定端11上的位置对应于第一线圈的相位角的角度之后，由第一接收线圈和第二接收线圈的排布方式可知，动端12在定端11上的位置对应于第一线圈的相位角的角度在0-2π之间，所以将动端12在定端11上的位置对应于第一线圈的相位角的角度与2π的比值乘以测量装置的总量程，就可以计算得到动端12在定端11上的位置对应的位移量，即为移动量。After knowing that the position of the moving end 12 on the fixed end 11 corresponds to the phase angle of the first coil, it can be known from the arrangement of the first receiving coil and the second receiving coil that the position of the moving end 12 on the fixed end 11 The angle corresponding to the phase angle of the first coil is between 0-2π, so the ratio of the position of the moving end 12 on the fixed end 11 to the phase angle of the first coil and 2π is multiplied by the total amount of the measuring device distance, the displacement amount corresponding to the position of the moving end 12 on the fixed end 11 can be calculated, which is the movement amount.

其中，测量装置的总量程等于呈正弦波排布的第一线圈的波长。The total range of the measuring device is equal to the wavelength of the first coil arranged in a sinusoidal waveform.

可以理解地，上述总量程为动端12在定端11的接收线圈112的延伸方向上可滑动的距离，那么，由于接收线圈122的延伸方向上可滑动的距离为呈正弦波形状排布的第一线圈(或者第二线圈，或者第三线圈或者第四线圈)的波长，所以，上述总量程可以为呈正弦波形状排布的第一线圈的波长。It can be understood that the above total range is the sliding distance of the moving end 12 in the extending direction of the receiving coil 112 of the fixed end 11. Then, since the sliding distance in the extending direction of the receiving coil 122 is arranged in a sine wave shape The wavelength of the first coil (or the second coil, or the third coil, or the fourth coil), therefore, the above total range can be the wavelength of the first coil arranged in a sinusoidal shape.

为了更好地实现位移测量，在一种可选的实施例中，发送线圈111设置为圆环状；接收线圈112在发送线圈111内侧以正弦波形式呈圆环状排布。In order to better realize displacement measurement, in an optional embodiment, the transmitting coil 111 is arranged in a circular ring shape; the receiving coil 112 is arranged in a circular ring shape in the form of a sine wave inside the transmitting coil 111 .

利用圆环状的发送线圈111，可以确定出此时排布的接收线圈112所感应到的感应信号与动端12相对于定端11的移动量之间的关系，从而基于该关系确定移动量。Using the annular transmitting coil 111, the relationship between the induction signal sensed by the arranged receiving coil 112 and the movement amount of the moving end 12 relative to the fixed end 11 can be determined, and the movement amount can be determined based on this relationship. .

进一步地，为了提高位移测量精度，将发送线圈111以圆环状围绕接收线圈112排布，将第一接收线圈和第二接收线圈排布至圆环内，这样，整个定端12整体为一个圆形，在对测量对象进行位移测量时，圆形的定端12上动端11作圆周运动，更易于与测量对象整合放置，例如与转轴相连接以进行位移测量，有利于应用于电子设备的内部，实现对位移的测量。Furthermore, in order to improve the accuracy of displacement measurement, the transmitting coil 111 is arranged in a circular shape around the receiving coil 112, and the first receiving coil and the second receiving coil are arranged inside the circular ring. In this way, the entire fixed end 12 is a circle as a whole. When the displacement of the measured object is measured, the movable end 11 on the circular fixed end 12 moves in a circular motion, which is easier to integrate with the measured object, for example, connected to a rotating shaft for displacement measurement, which is beneficial for application inside electronic equipment to achieve displacement measurement.

需要说明的是，当发送线圈111呈圆环状时，呈正弦波形状排布的第一线圈、第二线圈、第三线圈和第四线圈为在极坐标系下的正弦波形状。It should be noted that when the transmitting coil 111 is in a circular ring shape, the first coil, the second coil, the third coil and the fourth coil arranged in a sine wave shape are sine wave shapes in the polar coordinate system.

在上述圆环状的发送线圈111下，为了计算得到移动量，在一种可选的实施例中，动端12相对于定端11的移动轨迹为圆周，处理器13被构造成：Under the above-mentioned annular sending coil 111, in order to calculate the movement amount, in an optional embodiment, the movement trajectory of the moving end 12 relative to the fixed end 11 is a circle, and the processor 13 is configured to:

利用处理后的第一感应信号和处理后的第二感应信号，计算得到动端相对于定端的旋转角度；以及Using the processed first induction signal and the processed second induction signal, calculate the rotation angle of the moving end relative to the fixed end; and

基于旋转角度和第一线圈的周长，确定移动量。Based on the rotation angle and the circumference of the first coil, the amount of movement is determined.

可以理解地，将发送线圈111排布成圆环状，在圆环形成的圆周内排布接收线圈112，如此，使得动端12沿着接收线圈112的延伸方向滑动，例如，接收线圈112的延伸方向为圆周运动的方向，如此，发送线圈111和接收线圈112的延伸方向采用圆周的排布方式，能够使得动端12在较小的面积上可滑动的距离更长，即在减小定端11面积的情况下扩展了测量装置100的总量程，从而优化了测量装置的结构。It can be understood that the transmitting coil 111 is arranged in a ring shape, and the receiving coil 112 is arranged within the circle formed by the ring, so that the moving end 12 slides along the extension direction of the receiving coil 112, for example, the receiving coil 112 The extension direction is the direction of circular motion. In this way, the extension direction of the sending coil 111 and the receiving coil 112 adopts a circular arrangement, which can make the moving end 12 slide longer in a smaller area, that is, while reducing the fixed When the area of the end 11 is reduced, the total measuring range of the measuring device 100 is expanded, thereby optimizing the structure of the measuring device.

基于上述圆周排布的发送线圈111来说，可以理解地，处理器13为了确定出移动量，先分别对第一感应信号和第二感应信号进行解调处理和滤波处理，从而可以得到处理后的第一感应信号和处理后的第二感应信号，由于第一感应线圈和第二感应线圈采用正弦波的排布方式，使得处理后的第一感应信号随着位置的变化呈正弦变化，处理后的第二感应信号随着位置的变化呈余弦变化，那么，可以根据处理后的第一感应信号和处理后的第二感应信号，知晓动端11与定端12的旋转角度的正弦值、余弦值和正切值，那么，在0-2π范围内运用反三角函数可以确定出唯一的一个角度值，即为动端12与定端11的旋转角度。Based on the above-mentioned circumferentially arranged transmitting coil 111, it can be understood that in order to determine the movement amount, the processor 13 first performs demodulation processing and filtering processing on the first induction signal and the second induction signal respectively, so that the processed The first induction signal and the processed second induction signal. Since the first induction coil and the second induction coil adopt a sinusoidal arrangement, the processed first induction signal changes sinusoidally with the change of position. The processed second induction signal changes cosine with the change of position. Then, based on the processed first induction signal and the processed second induction signal, the sine value of the rotation angle of the moving end 11 and the fixed end 12 can be known. Cosine value and tangent value, then, the only angle value can be determined by using the inverse trigonometric function in the range of 0-2π, which is the rotation angle of the moving end 12 and the fixed end 11.

在知晓动端12与定端11的旋转角度之后，就可以知晓动端12在定端11上旋转的圈数，在处理器13中存储有圈数与位移之间的对应关系，例如一圈对应第一线圈的周长，这样，根据该对应关系可以确定出旋转角度对应的位移，即为移动量。After knowing the rotation angle of the moving end 12 and the fixed end 11, the number of turns of the moving end 12 on the fixed end 11 can be known. The corresponding relationship between the number of turns and the displacement is stored in the processor 13, for example, one turn Corresponding to the circumference of the first coil, in this way, the displacement corresponding to the rotation angle can be determined according to the corresponding relationship, which is the amount of movement.

如此，采用上述结构的测量装置100，将动端12的转动装置与滑卷类测量对象的转动装置相连接，从而可以实现对滑卷类目标对象的测量。In this way, by using the measuring device 100 with the above structure, the rotating device of the moving end 12 is connected with the rotating device of the sliding roll type measurement object, so that the measurement of the sliding roll type target object can be realized.

针对上述动端12为金属导体的情况来说，在一种实施例中，金属导体呈棱柱状；Regarding the above situation where the moving end 12 is a metal conductor, in one embodiment, the metal conductor is in the shape of a prism;

或者，金属导体呈圆柱状；Alternatively, the metallic conductor is cylindrical;

或者，金属导体包括圆柱状的部分和沿圆柱状的部分的周向均匀设置的多个凸部。Alternatively, the metal conductor includes a cylindrical portion and a plurality of convex portions uniformly provided in a circumferential direction of the cylindrical portion.

可以理解地，利用金属导体作为动端12在接收线圈112上移动，这样，金属导体置于变化的磁场中，会在金属导体上产生感应电流，从而在金属导体内形成自行闭合的电涡流，电涡流本身可以产生变换的磁场，接收线圈可以感应到感应信号，进而利用感应信号确定出移动量。It can be understood that a metal conductor is used as the moving end 12 to move on the receiving coil 112. In this way, when the metal conductor is placed in a changing magnetic field, an induced current will be generated on the metal conductor, thereby forming a self-closing eddy current in the metal conductor. The eddy current itself can generate a transformed magnetic field, and the receiving coil can sense the induction signal, and then use the induction signal to determine the amount of movement.

需要说明的是，上述金属导体可以为棱柱状，还可以为圆柱状，当然还可以为不规则形状，例如，金属导体包括一个圆柱状的部分，并且还包括圆柱状的部分的周向上设置的多个凸部，其中，多个凸部沿圆柱状的周向均匀设置，在实际应用中，可以根据定端的形状来选取合适的金属导体的形状以相适应，从而提高了电涡流效应，进而能够提高测量的精度。It should be noted that the above-mentioned metal conductor can be in the shape of a prism or a cylinder, and of course it can also be in an irregular shape. For example, the metal conductor includes a cylindrical part and also includes a cylindrical part arranged in the circumferential direction. A plurality of convex parts, wherein the plurality of convex parts are evenly arranged along the circumferential direction of the cylinder. In practical applications, a suitable shape of the metal conductor can be selected according to the shape of the fixed end to adapt, thereby improving the eddy current effect, and thereby Can improve the accuracy of measurement.

进一步地，为了提高位移测量的精度，在一种实施例中，定端12还包括：相邻排布的至少两个子接收线圈，各子接收线圈对应不同范围的移动量；其中，处理器13分别与至少两个子接收线圈耦合，其中，处理器13被构造成：Further, in order to improve the accuracy of displacement measurement, in one embodiment, the fixed end 12 also includes: at least two sub-receiving coils arranged adjacently, each sub-receiving coil corresponding to a different range of movement amount; wherein, the processor 13 Coupled with at least two sub-receiving coils respectively, wherein the processor 13 is configured to:

确定移动量所对应的子接收线圈； Determine the sub-receiving coil corresponding to the movement amount;

根据所对应的子接收线圈的感应信号重新确定动端相对于定端的移动量。The movement amount of the moving end relative to the fixed end is re-determined based on the induction signal of the corresponding sub-receiving coil.

可以理解地，定端11还包括相邻排布的至少两个子接收线圈，这两个相邻排布的子接收线圈中的每个子接收线圈对应不同范围的移动量，这样，处理器可以根据第一接收线圈和第二接收线圈所确定出的移动量，确定出该移动量所落入的范围，确定出该范围对应的子接收线圈，即确定出移动量所对应的子接收线圈。It can be understood that the fixed end 11 also includes at least two adjacently arranged sub-receiving coils. Each of the two adjacently arranged sub-receiving coils corresponds to a different range of movement. In this way, the processor can The movement amount determined by the first receiving coil and the second receiving coil determines the range within which the movement amount falls, and the sub-receiving coil corresponding to the range is determined, that is, the sub-receiving coil corresponding to the movement amount is determined.

在利用移动量所对应的子接收线圈所接收到的感应信号来确定移动量所对对应的子接收线圈对应的范围内的移动量，从而实现重新确定动端相对于定端的移动量，处理器重新确定动端相对于定端的移动量，与上述处理器根据第一感应信号和第二感应信号确定移动量的方式相同。The processor uses the induction signal received by the sub-receiving coil corresponding to the movement amount to determine the movement amount within the range corresponding to the sub-receiving coil corresponding to the movement amount, thereby redetermining the movement amount of the moving end relative to the fixed end. The processor The movement amount of the moving end relative to the fixed end is re-determined in the same manner as the above-mentioned processor determines the movement amount based on the first sensing signal and the second sensing signal.

为了实现对移动量的重新确定以提高测量精度，需要将每个子接收线圈按照正弦波的形状排布，在一种可选的实施例中，至少两个子接收线圈中的每个子接收线圈包括：第一子接收线圈和第二子接收线圈，第一子接收线圈包括彼此连接的第一子线圈和第二子线圈，第二子接收线圈包括彼此连接的第三子线圈和第四子线圈，第一子线圈、第二子线圈、第三子线圈和第四子线圈均呈正弦波的形状排布，第一子线圈与第二子线圈的相位角相差π，第一子线圈与第三子线圈的相位角相差π/2，第三子线圈与第四子线圈的相位角相差π；处理器还用于：In order to redetermine the movement amount to improve measurement accuracy, each sub-receiving coil needs to be arranged in the shape of a sine wave. In an optional embodiment, each of the at least two sub-receiving coils includes: a first sub-receiving coil and a second sub-receiving coil, the first sub-receiving coil includes a first sub-coil and a second sub-coil connected to each other, the second sub-receiving coil includes a third sub-coil and a fourth sub-coil connected to each other, The first sub-coil, the second sub-coil, the third sub-coil and the fourth sub-coil are all arranged in the shape of a sine wave. The phase angle difference between the first sub-coil and the second sub-coil is π. The phase angles of the sub-coils differ by π/2, and the phase angles of the third sub-coil and the fourth sub-coil differ by π; the processor is also used to:

从第一子接收线圈接收第一子感应信号，从第二子接收线圈接收第二子感应信号，以及处理器根据第一子感应信号和第二子感应信号重新确定动端相对于定端的移动量。The first sub-induction signal is received from the first sub-receiving coil, the second sub-induction signal is received from the second sub-receiving coil, and the processor re-determines the movement of the moving end relative to the fixed end based on the first sub-induction signal and the second sub-induction signal. quantity.

可以理解地，动端12在接收线圈112上沿着接收线圈112的延伸方向滑动，利用接收线圈112感应到的两个感应信号，可以测量出测量装置的总量程的移动量，那么，为了提高精度，可以将总量程分为若干个子量程，在每个子量程上排布一个子接收线圈，利用该子接收线圈与接收线圈112相同的排布方式，利用子接收线圈感应到的两个感应信号，可以测量出子量程的移动量。也就是说，当接收线圈112计算得到总量程内的移动量之后，可以定位出移动量对应的子量程，然后利用该子量程对应的子接收线圈来确定出子接收线圈对应的子量程内的移动量，实现对移动量的高精度测量。It can be understood that the moving end 12 slides on the receiving coil 112 along the extension direction of the receiving coil 112. Using the two induction signals sensed by the receiving coil 112, the movement amount of the total range of the measuring device can be measured. Then, in order To improve the accuracy, the total range can be divided into several sub-ranges, and a sub-receiving coil is arranged on each sub-range. The sub-receiving coil is arranged in the same way as the receiving coil 112, and the two sub-receiving coils sensed by the sub-receiving coil are used. The sensing signal can measure the movement of the sub-range. That is to say, after the receiving coil 112 calculates the movement amount within the total range, it can locate the sub-range corresponding to the movement amount, and then use the sub-receiving coil corresponding to the sub-range to determine the sub-range corresponding to the sub-receiving coil. movement amount, achieving high-precision measurement of the movement amount.

其中，为了提高位移测量的精度，可以确定出总量程内的测量结果所位于测量装置的子量程，由于每个子量程都对应有子接收线圈，相当于上述移动量对应的子接收线圈，例如，总量程为20cm，总量程的移动量为9cm，那么，当总量程包括两个子量程时，可以确定出总量程的移动量位于0-10cm的子量程中，所以，此时分别对该子量程对应的子接收线圈感应到的第一子感应信号和第二子感应信号进行解调处理和滤波处理，得到处理后的第一子感应信号和处理后的第二子感应信号，然后根据处理后的第一子感应信号和处理后的第二子感应信号来确定子量程内的移动量，即为重新确定的移动量。Among them, in order to improve the accuracy of displacement measurement, it is possible to determine the sub-range of the measuring device where the measurement results within the total range are located. Since each sub-range corresponds to a sub-receiving coil, it is equivalent to the sub-receiving coil corresponding to the above-mentioned movement amount, for example , the total measurement range is 20cm, and the movement amount of the total measurement range is 9cm. Then, when the total measurement range includes two sub-ranges, it can be determined that the movement amount of the total measurement range is in the sub-range of 0-10cm. Therefore, at this time The first sub-induction signal and the second sub-induction signal induced by the sub-receiving coil corresponding to the sub-range are respectively demodulated and filtered to obtain the processed first sub-induction signal and the processed second sub-induction signal. , and then determine the movement amount within the sub-range according to the processed first sub-induction signal and the processed second sub-induction signal, which is the re-determined movement amount.

需要说明的是，上述根据处理后的第一子感应信号和处理后的第二子感应信号来确定移动量的方式与根据处理后的第一感应信号和处理后的第二感应信号确定移动量的方式类似，这里不再赘述。It should be noted that the above method of determining the movement amount based on the processed first sub-sensing signal and the processed second sub-sensing signal is the same as determining the movement amount based on the processed first sub-sensing signal and the processed second sub-sensing signal. The method is similar and will not be described again here.

另外，由于子量程短于总量程，那么，在相同比特位的情况下，子量程对应的子接收线圈得到的子量程的移动量的精度，高于总量程对应的至少两个接收线圈得到的总量程的移动量，从而能够提高测量精度。 In addition, since the sub-range is shorter than the total range, in the case of the same bit, the accuracy of the movement amount of the sub-range obtained by the sub-receiving coil corresponding to the sub-range is higher than that of at least two receiving coils corresponding to the total range. The movement amount of the total range is obtained, thereby improving the measurement accuracy.

另外为了提高测量的精度，在一种实施例中，发送线圈111和接收线圈112采用PCB走线排布。In addition, in order to improve the accuracy of measurement, in one embodiment, the transmitting coil 111 and the receiving coil 112 are arranged using PCB traces.

也就是说，发送线圈121和至少两个接收线圈122均采用PCB走线来排布，这样，保证线圈的一致性，从而能够提高测量精度。That is to say, the transmitting coil 121 and at least two receiving coils 122 are arranged using PCB traces, thus ensuring the consistency of the coils and thereby improving the measurement accuracy.

另外，在一种可选的实施例中，发送线圈111和接收线圈112排布于同一平面上。In addition, in an optional embodiment, the transmitting coil 111 and the receiving coil 112 are arranged on the same plane.

可以理解地，定端11中的线圈都设置在一个平面内，这样，使得定端为一个平面结构，有利于动端12在定端11上移动，且有利于将测量装置设置于电子设备的内部与电子设备的其他内部结构进行整合，从而实现在电子设备中的位移测量。It can be understood that the coils in the fixed end 11 are all arranged in a plane, so that the fixed end has a planar structure, which is conducive to the movement of the moving end 12 on the fixed end 11 and is conducive to installing the measuring device on the electronic equipment. It is integrated internally with other internal structures of the electronic device to achieve displacement measurement in the electronic device.

下面举实例来对上述一个或多个实施例中的测量装置进行描述。Examples are given below to describe the measurement device in one or more of the above embodiments.

图2为本申请实施例提供的一种定端的实例一的结构示意图，如图2所示，该定端200包括PCB的板框21、发送线圈22和两组接收线圈，其中，两组接收线圈分别为接收线圈23和接收线圈24，接收线圈23和接收线圈24如图2所示排布，接收线圈23和接收线圈24之间相差四分之一个波长λ，这样做的目的是让接收线圈23和接收线圈24接收到的感应信号随位置的变化的波形是一致的，只是相位相差π。Figure 2 is a schematic structural diagram of Example 1 of a fixed end provided by the embodiment of the present application. As shown in Figure 2, the fixed end 200 includes a PCB board frame 21, a transmitting coil 22 and two sets of receiving coils, wherein the two sets of receiving coils The coils are receiving coil 23 and receiving coil 24 respectively. The receiving coil 23 and the receiving coil 24 are arranged as shown in Figure 2. The receiving coil 23 and the receiving coil 24 differ by one quarter wavelength λ. The purpose of this is to make The waveforms of the induction signals received by the receiving coil 23 and the receiving coil 24 change with the position are consistent, but the phase difference is π.

图3为本申请实施例提供的一种测量装置的实例一的电路示意图，如图4所示，包括动端31、定端32和处理电路33(相当于上述处理器)，定端32采用个长方体形状的金属块，金属块通过在至少两个接收线圈上按照至少两个接收线圈的延伸方向滑动来实现位移测量，由图2可知，定端200由发送线圈21，接收线圈23和接收线圈24组成，线圈采用PCB走线实现；动端也称为测量目标(target)，是由金属导体组成；处理电路33包括：模拟开关解调器331，放大器332，半桥333，低通滤波器334，微控制单元335(Microcontroller Unit，MCU)，低压差线性稳压器336(Low Dropout Regulator，LDO)，电平转换337(Level Shift)和应用处理器338(Application Processor，AP)。Figure 3 is a schematic circuit diagram of Example 1 of a measurement device provided by the embodiment of the present application. As shown in Figure 4, it includes a moving end 31, a fixed end 32 and a processing circuit 33 (equivalent to the above-mentioned processor). The fixed end 32 adopts A metal block in the shape of a rectangular parallelepiped. The metal block achieves displacement measurement by sliding on at least two receiving coils in the extending direction of at least two receiving coils. As can be seen from Figure 2, the fixed end 200 consists of a transmitting coil 21, a receiving coil 23 and a receiving coil. It consists of coil 24, which is implemented by PCB wiring; the moving end is also called the measurement target (target), which is composed of metal conductors; the processing circuit 33 includes: analog switching demodulator 331, amplifier 332, half bridge 333, and low-pass filtering 334, microcontroller unit 335 (Microcontroller Unit, MCU), low dropout linear regulator 336 (Low Dropout Regulator, LDO), level conversion 337 (Level Shift) and application processor 338 (Application Processor, AP).

定端32是一个在发射链路(TX)通道上发送高频交变信号，处理电路33通过半桥333向发送线圈施加高频交变信号，测量目标是是由金属导体构成的滑块，滑块在高频交变信号的作用下产生电涡流进而产生交变磁场，接收链路(RX)有两个通道，如上述图2所示的特定交错的结构，会使接收线圈感应的信号，相位差π，绕线方向相反，可以消除耦合干扰；利用金属导体的电涡流效应原理，使得接收线圈可以感应到感应信号，进而测量得到移动量。The fixed end 32 is a high-frequency alternating signal that is sent on the transmit link (TX) channel. The processing circuit 33 applies the high-frequency alternating signal to the transmitting coil through the half bridge 333. The measurement target is a slider composed of a metal conductor. The slider generates eddy currents under the action of high-frequency alternating signals and then generates alternating magnetic fields. The receiving link (RX) has two channels. The specific interleaved structure shown in Figure 2 above will cause the signal induced by the receiving coil to , the phase difference is π, and the winding direction is opposite, which can eliminate coupling interference; using the principle of eddy current effect of metal conductors, the receiving coil can sense the induction signal, and then measure the movement amount.

基于上述图3所示的测量装置对测量目标的测量过程中感应信号的处理来说，可以采用下述图4至图10进一步地说明。Based on the measurement device shown in Figure 3 above, the processing of induction signals during the measurement process of the measurement target can be further explained using the following Figures 4 to 10.

图4为本申请实施例提供的一种定端的实例二的结构示意图，如图5所示，该定端400包括：发送线圈41和一个接收线圈42(另一个接收线圈未示出)，处理电路给发送线圈41一个交变的激励信号U＝sinωt；其中，这个激励信号由单片机输出方波之后，经过半桥增强驱动能力，经过发送线圈41和电容滤波之后就成了正弦波。Figure 4 is a schematic structural diagram of Example 2 of a fixed end provided by the embodiment of the present application. As shown in Figure 5, the fixed end 400 includes: a transmitting coil 41 and a receiving coil 42 (the other receiving coil is not shown). Processing The circuit gives an alternating excitation signal U=sinωt to the transmitting coil 41; after the square wave is output by the microcontroller, the excitation signal passes through the half-bridge to enhance the driving capability, and becomes a sine wave after being filtered by the transmitting coil 41 and the capacitor.

动端的金属导体感应交变激励信号，会在接收线圈41上产生交变的磁场，接收线圈41接收感应信号。图4中的金属导体的右边沿处于A点时，信号处于的值为0，随着金属导体移动，接收线圈41感应接收到的感应信号的幅值逐渐增大，金属导体的右边沿到达C点时，接收到的感应信号的幅度到达峰值，然后随着移动，接收线圈41接收到的感应信号强度逐渐减小，金属导体的右边沿到达D点接收到的感应信号的幅度为0，继续往右边移动，幅度逐渐增大，在金属导体的右边沿到达E点时，接收线圈41接收到的感应信号达到峰值最高，继续往右移动，接收线圈41接收到感应信号强度逐渐减小，当金属导体的左边沿处于E点时，接收信号回落到0。The metal conductor at the moving end induces the alternating excitation signal, which generates an alternating magnetic field on the receiving coil 41, and the receiving coil 41 receives the induction signal. When the right edge of the metal conductor in Figure 4 is at point A, the value of the signal is 0. As the metal conductor moves, the amplitude of the induction signal received by the receiving coil 41 gradually increases, and the right edge of the metal conductor reaches point C. point, the received induction signal The amplitude reaches the peak value, and then as it moves, the intensity of the induction signal received by the receiving coil 41 gradually decreases. When the right edge of the metal conductor reaches point D, the amplitude of the induction signal received is 0. As it continues to move to the right, the amplitude gradually increases. When the right edge of the metal conductor reaches point E, the induction signal received by the receiving coil 41 reaches the highest peak, and continues to move to the right. The intensity of the induction signal received by the receiving coil 41 gradually decreases. When the left edge of the metal conductor is at point E, , the received signal drops back to 0.

图5为本申请实施例提供的一种感应信号的实例一的波形图，如图5所示为接收线圈42接收到的感应信号，随着金属导体相对于定端位置变化，接收线圈42感应到的感应信号强度也随着位置变化，从图5中可知，这个变化波形与AM调幅信号一致。Figure 5 is a waveform diagram of Example 1 of an induction signal provided by the embodiment of the present application. Figure 5 shows the induction signal received by the receiving coil 42. As the position of the metal conductor changes relative to the fixed end, the receiving coil 42 induces The intensity of the induced signal also changes with the position. As can be seen from Figure 5, this changing waveform is consistent with the AM amplitude modulation signal.

图6为本申请实施例提供的一种感应信号的实例二的波形图，如图6所示为将接收线圈62接收到的感应信号利用图3中的模拟开关解调器进行模拟开关解调得到的波形。Figure 6 is a waveform diagram of Example 2 of an induction signal provided by the embodiment of the present application. As shown in Figure 6, the induction signal received by the receiving coil 62 is subjected to analog switch demodulation using the analog switch demodulator in Figure 3. the resulting waveform.

图7为本申请实施例提供的一种感应信号的实例三的波形图，如图7所示为对图6中的波形利用图3中的低通滤波器进行低通滤波器之后，滤除高频信号得到的波形。Figure 7 is a waveform diagram of Example 3 of an induction signal provided by the embodiment of the present application. As shown in Figure 7, after low-pass filtering the waveform in Figure 6 using the low-pass filter in Figure 3, The waveform obtained from the high-frequency signal.

经过上述对感应信号的处理，可以得到处理后的感应信号，图8为本申请实施例提供的一种感应信号的实例四的波形图，如图8所示，横轴为移动量，粗线条为接收线圈23得到的处理后的感应信号的波形，其随着位置的变化，得到的电压信号(相当于上述处理后的感应信号)也是呈正弦变化的，然而，单个正弦信号是无法确定滑块相对于定端在那个角度，需要借助两个正弦信号，所以故意把线圈错位四分之一的波长，细线条为接收线圈24得到的处理后的感应信号的波形，使得两个接收线圈接收到的感应信号就是相位相差π的正弦波。After the above processing of the induction signal, the processed induction signal can be obtained. Figure 8 is a waveform diagram of Example 4 of an induction signal provided by the embodiment of the present application. As shown in Figure 8, the horizontal axis is the movement amount, and the thick line is The waveform of the processed induction signal obtained by the receiving coil 23 changes sinusoidally as the position changes. However, a single sinusoidal signal cannot determine the slider. At that angle relative to the fixed end, two sinusoidal signals are needed, so the coils are deliberately shifted by a quarter of the wavelength. The thin line is the waveform of the processed induction signal obtained by the receiving coil 24, so that the two receiving coils receive The induction signal is a sine wave with a phase difference of π.

定端的一个接收线圈接收到的感应信号随位置呈正弦变化，另一个接收线圈接收到的感应信号随位置呈余弦变化，图9为本申请实施例提供的一种相位角的示意图，如图9所示，在知晓两个感应信号之后，可以得知正弦值和余弦值，通过图9可以确定出动端在定端上的位置对应于第一线圈的相位角的角度所在的象限，利用反正切算出相位角pr：
The induction signal received by one receiving coil at the fixed end changes sinusoidally with the position, and the induction signal received by the other receiving coil changes cosinely with the position. Figure 9 is a schematic diagram of a phase angle provided by an embodiment of the present application, as shown in Figure 9 As shown, after knowing the two induction signals, the sine value and the cosine value can be known. Through Figure 9, it can be determined that the position of the output end on the fixed end corresponds to the quadrant of the phase angle of the first coil. Using the arc tangent Calculate the phase angle pr:

其中，k_sin表示第一接收线圈的处理后的感应信号，k_cos表示第二接收线圈的处理后的感应信号，根据动端在定端上的位置对应于第一线圈的相位角的角度，利用下述公式可以算出实际位移L：
Among them, k _sin represents the processed induction signal of the first receiving coil, and k _cos represents the processed induction signal of the second receiving coil. According to the position of the moving end on the fixed end corresponding to the phase angle of the first coil, The actual displacement L can be calculated using the following formula:

其中，λ为总量程，实际中与接收线圈的波长相等。Among them, λ is the total range, which is actually equal to the wavelength of the receiving coil.

为了进一步地提高测量精度，可以在上述定端上设置相邻排布的至少两个子接收线圈，每个子接收线圈的具体排布与至少两个接收线圈的排布类似，至少两个子接收线圈接收到的感应信号与至少两个接收线圈也类似，这里不再赘述。In order to further improve the measurement accuracy, at least two adjacently arranged sub-receiving coils can be provided on the above-mentioned fixed end. The specific arrangement of each sub-receiving coil is similar to the arrangement of the at least two receiving coils. The at least two sub-receiving coils receive The received induction signal is also similar to that of at least two receiving coils, and will not be described again here.

基于上述至少两个接收线圈和至少两个子接收线圈，图10为本申请实施例提供的一种感应信号和子感应信号的波形图，如图10所示，如果测量距离更长，需要满足相同的测量精度，在至少两个接收线圈，即接收线圈101和接收线圈102(图10中的虚线条波形)的基础上，额外再增加若干组子接收线圈，图10中示出了一组子接收线圈103(图10中的实线条波形)，需要说明的是，每组子接收线圈对应一个子量程，至少两个接收线圈用于定位初略的位置，每组子接收线圈用于在对应的子量程内定位，即利用精密的测量线圈组去测量精密位置。Based on the above at least two receiving coils and at least two sub-receiving coils, Figure 10 is a waveform diagram of an induction signal and a sub-induction signal provided by an embodiment of the present application. As shown in Figure 10, if the measurement distance is longer, the same requirements need to be met. The measurement accuracy is based on at least two receiving coils, namely the receiving coil 101 and the receiving coil 102 (the dotted line waveform in Figure 10), and several additional groups are added. Receiving coil, Figure 10 shows a group of sub-receiving coils 103 (solid line waveform in Figure 10). It should be noted that each group of sub-receiving coils corresponds to a sub-range, and at least two receiving coils are used for positioning. position, each group of sub-receiving coils is used to position within the corresponding sub-range, that is, a precise measurement coil group is used to measure the precise position.

图11为本申请实施例提供的一种测量装置的实例二的立体结构示意图，如图11所示，该测量装置放置于测量目标上，定端111固定放置，动端112设置于定端111之上，可以在定端111上滑动，通过动端112在定端111上的滑动，可以用于对目标对象的位移的测量。Figure 11 is a schematic three-dimensional structural diagram of Example 2 of a measurement device provided by the embodiment of the present application. As shown in Figure 11, the measurement device is placed on the measurement target, the fixed end 111 is fixedly placed, and the moving end 112 is provided on the fixed end 111 Above, it can slide on the fixed end 111, and by sliding the moving end 112 on the fixed end 111, it can be used to measure the displacement of the target object.

为了优化测量装置的结构以便于对不同种类的测量对象的测量，例如，针对卷轴式屏幕来说，可以通过把直线的线圈弯折成圆形，通过计算旋转的角度来计算卷轴式屏幕的移动位移。In order to optimize the structure of the measuring device to facilitate the measurement of different types of measurement objects, for example, for a scroll screen, the movement of the scroll screen can be calculated by bending the straight coil into a circle and calculating the angle of rotation. Displacement.

图12为本申请实施例提供的一种定端的实例三结构示意图，如图12所示，定端包括发送线圈121、接收线圈122和接收线圈123，其中，接收线圈122对应的处理后的第一感应信号呈正弦波，接收线圈123对应的处理后的第二感应信号呈余弦波；动端为金属导体(图12中未示出)，其中，发送线圈121呈圆环状，接收线圈122和接收线圈123呈正弦波形状排布，且之间的相位差为π，动端围绕发送线圈121的圆心在接收线圈122和接收线圈123上作圆周移动，这样，当处理器向发送线圈121施加交变信号，动端利用电涡流效应响应于交变信号产生的交变磁场，使得接收线圈122感应到第一感应信号，接收线圈123感应到第二感应信号，处理器在接收到第一感应信号和第二感应信号之后，对第一感应信号和第二感应信号分别进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号，利用处理后的第一感应信号和处理后的第二感应信号，可以计算得到动端在定端上的旋转角度，处理器利用预设的角度与位移之间的对应关系，将旋转角度对应的位移，确定为移动量；例如，旋转角度为π时，对应的位移为M，则移动量为M，旋转角度为2π时，对应的位移为2M，则移动量为2M，旋转角度为4π时，对应的位移为4M，则移动量为4M。Figure 12 is a schematic structural diagram of Example 3 of a fixed end provided by the embodiment of the present application. As shown in Figure 12, the fixed end includes a transmitting coil 121, a receiving coil 122 and a receiving coil 123, where the receiving coil 122 corresponds to the processed third An induction signal is a sine wave, and the processed second induction signal corresponding to the receiving coil 123 is a cosine wave; the moving end is a metal conductor (not shown in Figure 12), in which the sending coil 121 is in the shape of a ring, and the receiving coil 122 and the receiving coil 123 are arranged in a sine wave shape, and the phase difference between them is π. The moving end moves in a circle around the center of the sending coil 121 on the receiving coil 122 and the receiving coil 123. In this way, when the processor moves toward the sending coil 121 Applying an alternating signal, the dynamic end uses the eddy current effect to respond to the alternating magnetic field generated by the alternating signal, so that the receiving coil 122 senses the first induction signal, and the receiving coil 123 senses the second induction signal. The processor receives the first induction signal. After the induction signal and the second induction signal, the first induction signal and the second induction signal are respectively demodulated and filtered to obtain the processed first induction signal and the processed second induction signal, and the processed third induction signal is used The first induction signal and the processed second induction signal can calculate the rotation angle of the moving end on the fixed end. The processor uses the preset correspondence between the angle and the displacement to determine the displacement corresponding to the rotation angle as movement. Quantity; for example, when the rotation angle is π, the corresponding displacement is M, then the movement amount is M; when the rotation angle is 2π, the corresponding displacement is 2M, then the movement amount is 2M; when the rotation angle is 4π, the corresponding displacement is 4M, then the movement amount is 4M.

图13为本申请实施例提供的一种定端的实例四的结构示意图，如图13所示，基于图12，定端还包括：至少相邻排布的子接收线圈，其中，一组子接收线圈包括：子接收线圈131和子接收线圈132；子接收线圈131和子接收线圈132均呈正弦波形状，相位差为π，一组子接收线圈对应一个子量程，用于对子量程内重新进行位移测量，如此，提高测量精度。Figure 13 is a schematic structural diagram of Example 4 of a fixed end provided by the embodiment of the present application. As shown in Figure 13, based on Figure 12, the fixed end also includes: at least adjacently arranged sub-receiving coils, wherein a group of sub-receiving coils The coil includes: sub-receiving coil 131 and sub-receiving coil 132; both sub-receiving coil 131 and sub-receiving coil 132 are in the shape of a sine wave with a phase difference of π. A group of sub-receiving coils corresponds to a sub-range and is used to re-displace within the sub-range. Measurement, thus improving measurement accuracy.

例如，通过图12可以测得旋转角度之后，可以根据旋转角度，得到移动量，然后基于该移动量所对应的子接收线圈感应到的第一子感应信号和第二子感应信号，对第一子感应信号和第二子感应信号分别进行解调处理和滤波处理，得到处理后的第一子感应信号和处理后的第二子感应信号，利用处理后的第一子感应信号和处理后的第二子感应信号，可以重新得到动端在定端上的旋转角度，从而重新确定出移动量，如此，提高测量精度。For example, after the rotation angle can be measured through Figure 12, the movement amount can be obtained based on the rotation angle, and then based on the first sub-induction signal and the second sub-induction signal sensed by the sub-receiving coil corresponding to the movement amount, the first sub-induction signal is The sub-induction signal and the second sub-induction signal are demodulated and filtered respectively to obtain the processed first sub-induction signal and the processed second sub-induction signal. The processed first sub-induction signal and the processed The second sub-sensing signal can re-obtain the rotation angle of the moving end on the fixed end, thereby re-determining the movement amount, thus improving the measurement accuracy.

图14为本申请实施例提供的一种测量装置的实例三的结构示意图，如图14所示，与图3相比不同之处在于，包括定端141和动端142，其中，动端142采用可旋转的不规则的金属导体。Figure 14 is a schematic structural diagram of Example 3 of a measuring device provided by the embodiment of the present application. As shown in Figure 14, the difference compared with Figure 3 is that it includes a fixed end 141 and a moving end 142, wherein the moving end 142 Using rotatable irregular metal conductors.

其中，处理电路通过接收线圈122和接收线圈123接收到两个感应信号沿测量范围呈正弦变化，通过测量其幅值，得到相位角。Among them, the processing circuit receives two induction signals that vary sinusoidally along the measurement range through the receiving coil 122 and the receiving coil 123, and obtains the phase angle by measuring their amplitudes.

结合sin和cos的值，计算相位角，利用反正切算出旋转角度pr，即采用上述公式(1)计算得到 pr，这样就可以算出实际的旋转角度。Combining the values of sin and cos, calculate the phase angle, and use the arc tangent to calculate the rotation angle pr, which is calculated using the above formula (1) pr, so that the actual rotation angle can be calculated.

在实际测量中，把滑卷屏幕的位移量转换为旋转角度，本测量装置比较大，所以需要平面放置在机器上，通过齿轮旋转机构把旋转转换为平面旋转，通过本实例计算的角度值pr，将pr对应的位移确定为移动量。In the actual measurement, the displacement of the sliding screen is converted into a rotation angle. This measurement device is relatively large, so it needs to be placed flat on the machine. The rotation is converted into plane rotation through the gear rotation mechanism. The angle value pr calculated through this example , determine the displacement corresponding to pr as the movement amount.

图15为本申请实施例提供的一种测量装置的实例四的结构示意图，如图15所示，该测量装置(相当于角度编码器151)连接传动机构连接屏幕153的电机152上，随着电机的转动，滑卷屏幕的宽度在变化，此时，该测量装置用于对滑卷屏幕的展开宽度进行测量，以得到滑卷屏幕的展开宽度。例如可以通过锥齿轮，将电机输出轴在竖直平面内(或者说在电子设备的厚度方向所在平面内)的旋转转换成定端在在水平平面内(或者说在垂直于电子设备厚度方向的平面内)的旋转，其中定端经由锥齿轮连接至电机输出轴。此时定端做旋转运动，而动端固定于壳体并相对于定端做旋转运动，因此也可以将定端改称为动端，而将动端改称为定端。Figure 15 is a schematic structural diagram of Example 4 of a measuring device provided by the embodiment of the present application. As shown in Figure 15, the measuring device (equivalent to the angle encoder 151) is connected to the motor 152 of the screen 153 connected to the transmission mechanism. As the motor rotates, the width of the sliding screen changes. At this time, the measuring device is used to measure the unfolded width of the sliding screen to obtain the unfolded width of the sliding screen. For example, bevel gears can be used to convert the rotation of the motor output shaft in the vertical plane (or in the plane of the thickness direction of the electronic device) into the rotation of the fixed end in the horizontal plane (or in the plane perpendicular to the thickness direction of the electronic device). (in-plane) rotation, with the fixed end connected to the motor output shaft via a bevel gear. At this time, the fixed end performs rotational movement, while the moving end is fixed to the housing and performs rotational movement relative to the fixed end. Therefore, the fixed end can also be renamed the moving end, and the moving end can be renamed the fixed end.

在上述实例中，发送线圈的高频信号主动驱动调制，对磁场干扰不敏感，易于安装，对安装公差有一定的适应性，抗电磁干扰，防尘，防油污，温湿环境不影响其使用，精度高，可以增加模拟数字转换器(Analog-to-digital converter，ADC)的位数，或者缩小测量线圈的波长，做到更高的测量精度。In the above example, the high-frequency signal of the sending coil is actively driven and modulated, is not sensitive to magnetic field interference, is easy to install, has certain adaptability to installation tolerances, is anti-electromagnetic interference, dust-proof, oil-proof, and the temperature and humidity environment does not affect its use. , high accuracy, you can increase the number of digits of the analog-to-digital converter (ADC), or reduce the wavelength of the measurement coil to achieve higher measurement accuracy.

可见，测量目标基于电磁感应原理和电涡流效应，可以抗金属干扰，发送线圈和接收线圈采用PCB走线实现，线圈一致性效果好，提高了测量精度。It can be seen that the measurement target is based on the principle of electromagnetic induction and eddy current effect, which can resist metal interference. The transmitting coil and receiving coil are implemented using PCB wiring. The coil consistency effect is good and the measurement accuracy is improved.

本申请实施例提供了一种测量装置，在本申请实施例中，上述测量装置的发送线圈和接收线圈利用电磁感应原理，金属导体利用电涡流效应，使得处理器可以接收到第一感应信号和第二感应信号，通过上述第一接收线圈和第二接收线圈的排布，使得处理器接收到的第一感应信号和第二感应信号能够反映出动端相对于定端的位置关系，如此，使得处理器可以利用第一感应信号和第二感应信号来确定总量程内的测量结果，如此，采用发送线圈，接收线圈和金属导体来产生第一感应信号和第二感应信号，能够抗金属干扰，提高了位移测量的可靠性，进而提高了测量装置的可靠性。An embodiment of the present application provides a measuring device. In the embodiment of the present application, the transmitting coil and the receiving coil of the above-mentioned measuring device utilize the principle of electromagnetic induction, and the metal conductor utilizes the eddy current effect, so that the processor can receive the first induction signal and The second induction signal, through the arrangement of the first receiving coil and the second receiving coil, enables the first induction signal and the second induction signal received by the processor to reflect the positional relationship of the moving end relative to the fixed end. In this way, the processing The device can use the first induction signal and the second induction signal to determine the measurement results within the total range. In this way, the sending coil, the receiving coil and the metal conductor are used to generate the first induction signal and the second induction signal, which can resist metal interference. The reliability of the displacement measurement is improved, thereby improving the reliability of the measuring device.

基于前述实施例相同的发明构思，本申请实施例提供一种电子设备，图16为本申请实施例提供的一种电子设备的组成示意图，如图16所示，该电子设备1600包括上述一个或多个实施例所述的测量装置161，第一壳体162、第二壳体163和柔性屏164；其中，Based on the same inventive concept of the previous embodiment, an embodiment of the present application provides an electronic device. Figure 16 is a schematic diagram of the composition of an electronic device provided by an embodiment of the present application. As shown in Figure 16, the electronic device 1600 includes one of the above or The measuring device 161, the first housing 162, the second housing 163 and the flexible screen 164 described in multiple embodiments; wherein,

第二壳体163可滑动地连接至第一壳体162，柔性屏164连接在第一壳体162和第二壳体163上且能够随第二壳体163相对第一壳体162的滑动而展开或收缩。The second housing 163 is slidably connected to the first housing 162 . The flexible screen 164 is connected to the first housing 162 and the second housing 163 and can move as the second housing 163 slides relative to the first housing 162 . Expand or collapse.

在一种可选的实施例中，定端设置在第一壳体上162，动端设置在第二壳体163上，测量装置161为如图3中所述的实施例中的测量装置；随着第二壳体163相对于第一壳体162的滑动，动端相对于定端作直线移动。In an optional embodiment, the fixed end is provided on the first housing 162, the moving end is provided on the second housing 163, and the measuring device 161 is the measuring device in the embodiment as shown in Figure 3; As the second housing 163 slides relative to the first housing 162, the moving end moves linearly relative to the fixed end.

在一种可选的实施例中，还包括用于驱动第二壳体相对于第一壳体滑动的电机，定端与电机的输出轴相连接，测量装置为如图14所述的实施例中的测量装置；随着电机的输出轴的转动，动端相对于定端作圆周运动。In an optional embodiment, it also includes a motor for driving the second housing to slide relative to the first housing, the fixed end is connected to the output shaft of the motor, and the measuring device is the embodiment as shown in Figure 14 The measuring device in the motor; as the output shaft of the motor rotates, the moving end phase Make a circular motion for the fixed end.

基于前述实施例相同的发明构思，本申请实施例提供一种测量方法，该方法应用于上述一个或多个实施例所述的测量装置的处理器，图17为本申请实施例提供的一种测量方法的流程示意图，如图17所示，该方法包括：Based on the same inventive concept of the previous embodiments, embodiments of the present application provide a measurement method, which is applied to the processor of the measurement device described in one or more embodiments. Figure 17 shows a method provided by the embodiment of the present application. The flow chart of the measurement method is shown in Figure 17. The method includes:

S1701：当处理器向定端的发送线圈施加交变信号，且动端相对于定端移动时，接收到来自接收线圈的感应信号；S1701: When the processor applies an alternating signal to the transmitting coil of the fixed end and the moving end moves relative to the fixed end, the induction signal from the receiving coil is received;

S1702：根据感应信号确定动端相对于定端的移动量。S1702: Determine the movement amount of the moving end relative to the fixed end based on the sensing signal.

在一种实施例中，上述方法还可以包括：In an embodiment, the above method may further include:

接收来自第一接收线圈的第一感应信号和第二接收线圈的第二感应信号；receiving a first induction signal from the first receiving coil and a second induction signal from the second receiving coil;

根据第一感应信号和第二感应信号确定动端相对于定端的移动量。The movement amount of the moving end relative to the fixed end is determined based on the first sensing signal and the second sensing signal.

在一种可选的实施例中，动端相对于定端的移动轨迹为直线，根据第一感应信号和第二感应信号确定动端相对于定端的移动量，包括：In an optional embodiment, the movement trajectory of the moving end relative to the fixed end is a straight line, and the movement amount of the moving end relative to the fixed end is determined based on the first sensing signal and the second sensing signal, including:

分别对第一感应信号和第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号；Perform demodulation processing and filtering processing on the first induction signal and the second induction signal respectively to obtain the processed first induction signal and the processed second induction signal;

利用处理后的第一感应信号和处理后的第二感应信号，计算得到动端与定端上的位置对应于第一线圈的相位角；Using the processed first induction signal and the processed second induction signal, calculate the phase angle corresponding to the position of the moving end and the fixed end corresponding to the first coil;

在一种实施例中，所述动端相对于所述定端的移动轨迹为圆周，根据第一感应信号和第二感应信号确定动端相对于定端的移动量，包括：In one embodiment, the movement trajectory of the moving end relative to the fixed end is a circle, and the movement amount of the moving end relative to the fixed end is determined based on the first sensing signal and the second sensing signal, including:

利用处理后的第一感应信号和处理后的第二感应信号，计算得到动端与定端的旋转角度；以及Using the processed first induction signal and the processed second induction signal, calculate the rotation angle of the moving end and the fixed end; and

在一种实施例中，上述方法还包括：In one embodiment, the above method further includes:

确定移动量所对应的子接收线圈；Determine the sub-receiving coil corresponding to the movement amount;

图18为本申请实施例提供的一种测量装置的组成框图，如图18所示，本申请实施例提供了一种测量装置1800，包括：Figure 18 is a block diagram of a measurement device provided by an embodiment of the present application. As shown in Figure 18, an embodiment of the present application provides a measurement device 1800, including:

处理器181以及存储有所述处理器181可执行指令的存储介质182，所述存储介质182通过通信总线183依赖所述处理器181执行操作，当所述指令被所述处理器181执行时，执行上述一个或多个实施例中所执行的所述测量方法。The processor 181 and the storage medium 182 storing instructions executable by the processor 181. The storage medium 182 relies on the processor 181 to perform operations through the communication bus 183. When the instructions are executed by the processor 181, The measurement method performed in one or more of the above embodiments is performed.

需要说明的是，实际应用时，测量装置中的各个组件通过通信总线183耦合在一起。可理解，通信总线183用于实现这些组件之间的连接通信。通信总线183除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图18中将各种总线都标为通信总线183。It should be noted that in actual application, various components in the measurement device are coupled together through the communication bus 183 . It can be understood that the communication bus 183 is used to implement connection communication between these components. In addition to the data bus, the communication bus 183 also includes a power supply bus, control bus and status signal bus. However, for the sake of clarity, the various buses are labeled communication bus 183 in FIG. 18 .

本申请实施例提供了一种计算机存储介质，存储有可执行指令，当所述可执行指令被一个或多个处理器执行的时候，所述处理器执行如上述一个或多个实施例中控制设备执行的所述的测量方法。Embodiments of the present application provide a computer storage medium that stores executable instructions. When the executable instructions are executed by one or more processors, the processor executes the control as in one or more of the above embodiments. The device performs the described measurement method.

其中，计算机可读存储介质可以是磁性随机存取存储器(ferromagnetic random access memory，FRAM)、只读存储器(Read Only Memory，ROM)、可编程只读存储器(Programmable Read-Only Memory，PROM)、可擦除可编程只读存储器(Erasable Programmable Read-Only Memory，EPROM)、电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(Compact Disc Read-Only Memory，CD-ROM)等存储器。Among them, the computer-readable storage medium can be magnetic random access memory (ferromagnetic random access memory, FRAM), read-only memory (Read Only Memory, ROM), programmable read-only memory (Programmable Read-Only Memory, PROM), programmable read-only memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash Memory, Magnetic Surface Memory , optical disk, or Compact Disc Read-Only Memory (CD-ROM) and other memories.

本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will understand that embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk storage and optical storage, etc.) embodying computer-usable program code therein.

本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a use A device for realizing the functions specified in one process or multiple processes of the flowchart and/or one block or multiple blocks of the block diagram.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions The device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device. Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。 The above descriptions are only preferred embodiments of the present application and are not intended to limit the protection scope of the present application.

Claims

一种测量装置，包括：A measuring device comprising:

定端，所述定端包括发送线圈和接收线圈；Fixed end, the fixed end includes a transmitting coil and a receiving coil;

能够相对于所述定端移动的动端，所述动端包括金属导体；以及a moving end capable of moving relative to the fixed end, the moving end including a metal conductor; and

处理器，所述处理器分别与所述发送线圈和所述接收线圈耦合，其中，a processor coupled to the transmit coil and the receive coil respectively, wherein,

当所述动端相对于所述定端移动时，所述处理器向所述发送线圈施加交变信号，所述金属导体响应于所述交变信号产生交变磁场，所述接收线圈感应所述交变磁场产生感应信号并传输至所述处理器，所述处理器根据所述感应信号确定所述动端相对于所述定端的移动量。When the moving end moves relative to the fixed end, the processor applies an alternating signal to the transmitting coil, the metal conductor generates an alternating magnetic field in response to the alternating signal, and the receiving coil induces The alternating magnetic field generates an induction signal and transmits it to the processor, and the processor determines the movement amount of the moving end relative to the fixed end based on the induction signal.
根据权利要求1所述的测量装置，其中，所述接收线圈包括第一接收线圈和第二接收线圈，所述第一接收线圈包括彼此连接的第一线圈和第二线圈，所述第二接收线圈包括彼此连接的第三线圈和第四线圈，所述第一线圈、所述第二线圈、所述第三线圈和所述第四线圈均呈正弦波形状排布，所述第一线圈与所述第二线圈的相位角相差π，所述第一线圈与所述第三线圈的相位角相差π/2，所述第三线圈与所述第四线圈的相位角相差π，The measuring device according to claim 1, wherein the receiving coil includes a first receiving coil and a second receiving coil, the first receiving coil includes a first coil and a second coil connected to each other, and the second receiving coil The coil includes a third coil and a fourth coil connected to each other. The first coil, the second coil, the third coil and the fourth coil are all arranged in a sinusoidal shape. The first coil and The phase angle difference of the second coil is π, the phase angle difference of the first coil and the third coil is π/2, the phase angle difference of the third coil and the fourth coil is π,

所述第一接收线圈感应所述交变磁场以产生第一感应信号，所述第二接收线圈感应所述交变磁场以产生第二感应信号，所述处理器根据所述第一感应信号和所述第二感应信号确定所述动端相对于所述定端的移动量。The first receiving coil induces the alternating magnetic field to generate a first induction signal, the second receiving coil induces the alternating magnetic field to generate a second induction signal, and the processor responds to the first induction signal and The second sensing signal determines the movement amount of the moving end relative to the fixed end.
根据权利要求2所述的测量装置，其中，所述发送线圈设置为矩形框状，所述接收线圈在所述发送线圈内侧以正弦波形式呈直线状排布。The measuring device according to claim 2, wherein the transmitting coil is arranged in a rectangular frame shape, and the receiving coil is linearly arranged in the form of a sinusoidal wave inside the transmitting coil.
根据权利要求3所述的测量装置，其中，所述接收线圈在所述发送线圈内侧以一个正弦波形式呈直线状排布。The measuring device according to claim 3, wherein the receiving coil is linearly arranged in the form of a sinusoidal wave inside the transmitting coil.
根据权利要求3所述的测量装置，其中，所述动端相对于所述定端的移动轨迹为直线，所述处理器被构造成：The measuring device according to claim 3, wherein the movement trajectory of the moving end relative to the fixed end is a straight line, and the processor is configured to:

分别对所述第一感应信号和所述第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号；Perform demodulation processing and filtering processing on the first induction signal and the second induction signal respectively to obtain a processed first induction signal and a processed second induction signal;

利用所述处理后的第一感应信号和所述处理后的第二感应信号，计算得到所述动端在所述定端上的位置对应于所述第一线圈的相位角；Using the processed first induction signal and the processed second induction signal, calculate the position of the moving end on the fixed end corresponding to the phase angle of the first coil;

基于所述相位角和所述第一线圈的波长，确定所述移动量。The amount of movement is determined based on the phase angle and the wavelength of the first coil.
根据权利要求5所述的测量装置，其中，所述第一线圈的相位角的角度在0-2π之间。The measuring device according to claim 5, wherein the phase angle of the first coil is between 0-2π.
根据权利要求6所述的测量装置，其中，所述基于所述相位角和所述第一线圈的波长，确定所述移动量，包括：The measuring device according to claim 6, wherein the determining the amount of movement based on the phase angle and the wavelength of the first coil includes:

将所述第一线圈的相位角的角度与2π的比值，与所述测量装置的总量程的乘积，确定为所述移动量。The movement amount is determined as the product of the ratio of the phase angle of the first coil to 2π and the total range of the measuring device.
根据权利要求7所述的测量装置，其中，所述测量装置的总量程等于呈正弦波排布的第一线圈的波长。The measuring device according to claim 7, wherein the total measuring range of the measuring device is equal to the first line arranged as a sinusoidal wave. The wavelength of the circle.
根据权利要求2所述的测量装置，其中，所述发送线圈设置为圆环状，所述接收线圈在所述发送线圈内侧以正弦波形式呈圆环状排布。The measuring device according to claim 2, wherein the transmitting coil is arranged in a circular ring shape, and the receiving coil is arranged in a circular ring shape in the form of a sinusoidal wave inside the transmitting coil.
根据权利要求9所述的测量装置，其中，所述动端相对于所述定端的移动轨迹为圆周，所述处理器被构造成：The measuring device according to claim 9, wherein the movement trajectory of the moving end relative to the fixed end is a circle, and the processor is configured to:

分别对所述第一感应信号和所述第二感应信号进行解调处理和滤波处理，得到处理后的第一感应信号和处理后的第二感应信号；Perform demodulation processing and filtering processing on the first induction signal and the second induction signal respectively to obtain a processed first induction signal and a processed second induction signal;

利用所述处理后的第一感应信号和所述处理后的第二感应信号，计算得到所述动端相对于所述定端的旋转角度；以及Using the processed first induction signal and the processed second induction signal, calculate the rotation angle of the moving end relative to the fixed end; and

基于所述旋转角度和所述第一线圈的周长，确定所述移动量。The amount of movement is determined based on the rotation angle and the circumference of the first coil.
根据权利要求10所述的测量装置，其中，所述基于所述旋转角度和所述第一线圈的周长，确定为所述移动量，包括：The measuring device according to claim 10, wherein the determination of the movement amount based on the rotation angle and the circumference of the first coil includes:

基于2π与所述第一线圈的周长之间的比例关系，根据所述旋转角度确定所述移动量。The amount of movement is determined based on the rotation angle based on a proportional relationship between 2π and the circumference of the first coil.
根据权利要求1所述的测量装置，其中，所述金属导体呈棱柱状；The measuring device according to claim 1, wherein the metal conductor is prismatic;

或者，所述金属导体呈圆柱状。Alternatively, the metal conductor is cylindrical.
根据权利要求1所述的测量装置，其中，所述金属导体包括圆柱状的部分和沿所述圆柱状的部分的周向均匀设置的多个凸部。The measuring device according to claim 1, wherein the metal conductor includes a cylindrical portion and a plurality of convex portions uniformly arranged along a circumferential direction of the cylindrical portion.
根据权利要求1至13中任一项所述的测量装置，其中，所述定端还包括相邻排布的至少两个子接收线圈，各所述子接收线圈对应不同范围的移动量；其中，所述处理器分别与所述至少两个子接收线圈耦合，其中，所述处理器被构造成：The measuring device according to any one of claims 1 to 13, wherein the fixed end further includes at least two adjacently arranged sub-receiving coils, each of the sub-receiving coils corresponding to different ranges of movement; wherein, The processor is coupled to the at least two sub-receiving coils respectively, wherein the processor is configured to:

确定所述移动量所对应的子接收线圈；Determine the sub-receiving coil corresponding to the movement amount;

根据所述对应的子接收线圈的感应信号重新确定所述动端相对于所述定端的移动量。The movement amount of the moving end relative to the fixed end is re-determined based on the induction signal of the corresponding sub-receiving coil.
根据权利要求14所述的测量装置，其中，每个所述子接收线圈包括：第一子接收线圈和第二子接收线圈，所述第一子接收线圈包括彼此连接的第一子线圈和第二子线圈，用于感应所述交变磁场以产生第一子感应信号，所述第二子接收线圈包括彼此连接的第三子线圈和第四子线圈，用于感应所述交变磁场以产生第二子感应信号，所述第一子线圈、所述第二子线圈、所述第三子线圈和所述第四子线圈均呈正弦波的形状排布，所述第一子线圈与所述第二子线圈的相位角相差π，所述第一子线圈与所述第三子线圈的相位角相差π/2，所述第三子线圈与所述第四子线圈的相位角相差π；The measuring device according to claim 14, wherein each of the sub-receiving coils includes: a first sub-receiving coil and a second sub-receiving coil, the first sub-receiving coil includes a first sub-coil and a second sub-receiving coil connected to each other. Two sub-coils are used to induce the alternating magnetic field to generate a first sub-induction signal. The second sub-receiving coil includes a third sub-coil and a fourth sub-coil connected to each other, and are used to induce the alternating magnetic field to generate a first sub-induction signal. A second sub-induction signal is generated. The first sub-coil, the second sub-coil, the third sub-coil and the fourth sub-coil are all arranged in the shape of a sinusoidal wave. The first sub-coil and The phase angle difference of the second sub-coil is π, the phase angle difference of the first sub-coil and the third sub-coil is π/2, the phase angle difference of the third sub-coil and the fourth sub-coil is π;

所述处理器还用于：The processor is also used to:

从所述第一子接收线圈接收所述第一子感应信号，从所述第二子接收线圈接收所述第二子感应信号，以及根据所述第一子感应信号和所述第二子感应信号重新确定所述动端相对于所述定端的移动量。The first sub-induction signal is received from the first sub-receiving coil, the second sub-induction signal is received from the second sub-receiving coil, and the first sub-induction signal and the second sub-induction signal are received from the first sub-receiving coil. The signal re-determines the movement amount of the moving end relative to the fixed end.
根据权利要求1所述的测量装置，其中，所述发送线圈和所述接收线圈采用PCB走线排布。The measuring device according to claim 1, wherein the transmitting coil and the receiving coil are arranged using PCB traces.
根据权利要求16所述的测量装置，其中，所述发送线圈和所述接收线圈排布于同一平面上。 The measuring device according to claim 16, wherein the transmitting coil and the receiving coil are arranged on the same plane.
一种电子设备，包括：上述权利要求1至17任一项所述的测量装置、第一壳体、第二壳体和柔性屏；其中，An electronic device, including: the measurement device according to any one of claims 1 to 17, a first housing, a second housing and a flexible screen; wherein,

所述第二壳体可滑动地连接至所述第一壳体，所述柔性屏连接在第一壳体和第二壳体上且能够随所述第二壳体相对所述第一壳体的滑动而展开或收缩。The second housing is slidably connected to the first housing, and the flexible screen is connected to the first housing and the second housing and can be relative to the first housing with the second housing. expand or contract by sliding.
根据权利要求18所述的电子设备，其中，所述定端设置在所述第一壳体上，所述动端设置在所述第二壳体上，所述测量装置为权利要求3或5中所述的测量装置；随着所述第二壳体相对于所述第一壳体的滑动，所述动端相对于所述定端作直线移动。The electronic device according to claim 18, wherein the fixed end is provided on the first housing, the moving end is provided on the second housing, and the measuring device is as claimed in claim 3 or 5. The measuring device described in; as the second housing slides relative to the first housing, the moving end moves linearly relative to the fixed end.
根据权利要求18所述的电子设备，其中，还包括用于驱动所述第二壳体相对于所述第一壳体滑动的电机，所述定端与所述电机的输出轴相连接，所述测量装置为权利要求9或10所述的测量装置；随着所述电机的输出轴的转动，所述动端相对于所述定端作圆周运动。 The electronic device according to claim 18, further comprising a motor for driving the second housing to slide relative to the first housing, the fixed end being connected to an output shaft of the motor, The measuring device is the measuring device according to claim 9 or 10; as the output shaft of the motor rotates, the moving end makes a circular motion relative to the fixed end.