CN219829952U - Rotary sensor test equipment - Google Patents
Rotary sensor test equipment Download PDFInfo
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- CN219829952U CN219829952U CN202321315831.9U CN202321315831U CN219829952U CN 219829952 U CN219829952 U CN 219829952U CN 202321315831 U CN202321315831 U CN 202321315831U CN 219829952 U CN219829952 U CN 219829952U
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses rotary sensor testing equipment which comprises a substrate, wherein at least one angle measuring device is arranged on the substrate, the angle measuring device is connected with a sensor, the sensor is fixed on the angle measuring device through a fixing structure, the rotation axis of the angle measuring device is coaxial with the rotation axis of the sensor, a contact resistance measuring device is arranged on a rotating part, and the contact resistance measuring device is used for measuring the contact resistance of the sensor. The utility model not only can be suitable for various rotary sensors, but also can simultaneously measure the rotation angle and the contact resistance of the sensor, thereby reducing the measurement time and improving the detection efficiency.
Description
Technical Field
The utility model relates to the technical field of sensor detection equipment, in particular to rotary sensor testing equipment.
Background
The rotary sensor testing equipment is mainly used for detecting and discharging faults of the rotary sensor after the faults of the rotary sensor are found in the sensor testing process, rotation angle measurement is a main detection index of the rotary sensor, and the factory qualification rate of the sensor is ensured by testing and detecting the rotation angle precision index of the sensor.
Disclosure of Invention
The utility model provides rotary sensor testing equipment which can realize rotation angle measurement; the technical scheme adopted is as follows:
the utility model provides a rotation type sensor test equipment, includes the base plate, be equipped with at least one angle measuring device on the base plate, angle measuring device connects the sensor, just the sensor passes through fixed knot constructs to be fixed angle measuring device is last, angle measuring device's axis of rotation is coaxial with the axis of rotation of sensor.
Preferably, the angle measuring devices are arranged side by side or staggered or annularly.
Preferably, the rotating component is further provided with a contact resistance measuring device, and the contact resistance measuring device is used for measuring the contact resistance value of the sensor.
Preferably, the angle measuring device comprises a first support frame, a second support frame and a servo motor, the servo motor is coaxially connected with a speed reducer, the speed reducer is coaxially connected with an encoder, the encoder is coaxially connected with one end of a connecting shaft, the encoder and the connecting shaft are all arranged in the first support frame, the connecting shaft is rotationally connected with a bearing seat through a bearing, the bearing seat is detachably connected with a bearing end cover, the bearing seat, the bearing and the bearing end cover are all arranged in the second support frame, the bearing seat penetrates through the second support frame, the second support frame is arranged on the first support frame, the other end of the connecting shaft is provided with a coupler, and the coupler is used for clamping a transmission shaft of the sensor.
Preferably, the fixing structure comprises a pressing plate, the pressing plate is connected with a mounting plate, and the mounting plate is fixedly connected with the second supporting frame.
Preferably, the first support frame and the second support frame are hollow structures.
Preferably, the contact resistance of the sensor is measured by adopting an ohm law calculation method, and the calculation formula is as follows:
preferably, when the temperature of the test environment is between-90 ℃ and-70 ℃, the angle measuring device is arranged in the heat preservation box, the heat preservation box is composed of a heat preservation device, an epoxy resin plate, polyurethane foam and an outer skin, wherein the heat preservation device, the epoxy resin plate, the polyurethane foam and the outer skin are sequentially arranged from inside to outside, the heat preservation device comprises a temperature controller, the temperature controller is connected with a temperature sensor, the temperature sensor is used for collecting and inputting detection temperature to the temperature controller, the temperature controller is used for adjusting the input voltage of a heating component through the collected temperature, the inner surface of the epoxy resin plate is coated with heat preservation materials, handles are respectively arranged on two sides of the heat preservation box, and supporting feet are arranged at the bottom of the heat preservation box.
Preferably, the system further comprises an industrial personal computer, wherein the industrial personal computer integrates a control system of the sensor testing equipment and comprises the angle measuring device and the contact resistance measuring device.
The rotary sensor testing device has the beneficial effects that:
1) The rotary sensor can measure a plurality of different types at one time;
2) The rotation angle and the contact resistance of the sensor can be measured simultaneously;
3) The sensor can realize normal temperature test, high temperature test and low temperature test.
Drawings
FIG. 1 is a schematic mechanical diagram of a rotary sensor testing apparatus according to the present utility model;
FIG. 2 is a schematic view of an angle measurement device according to the present utility model in semi-section;
FIG. 3 is a schematic circuit diagram of a contact resistance measuring device according to the present utility model;
FIG. 4 is a functional block diagram of a rotary sensor testing apparatus according to the present utility model;
FIG. 5 is a schematic view of the structure of the first support frame according to the present utility model;
FIG. 6 is a schematic view of a second support frame according to the present utility model;
FIG. 7 is a schematic view of the structure of the mounting plate according to the present utility model;
fig. 8 is a partial enlarged view at a in fig. 1.
In the figure: 1. the device comprises a substrate, 2, an angle measuring device, 3, a fixed structure, 4, a sensor, 5, a mounting plate, 6, an insulation box, 7, a servo motor, 8, a speed reducer, 9, an encoder, 10, a connecting shaft, 11, a bearing seat, 12, a bearing end cover, 13, a coupler, 14, a second support frame, 15, a first support frame, 16 and a pressing plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments of the present utility model are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
Referring to fig. 1, a rotary sensor testing device includes a substrate 1, at least one angle measuring device 2 is disposed on the substrate 1, the angle measuring device 2 is connected with a sensor 4, the sensor 4 is fixed on the angle measuring device 2 through a fixing structure 3, and a rotation axis of the angle measuring device 2 is coaxial with a rotation axis of the sensor 4.
In this embodiment, the number of the angle measuring devices 2 is 3, and similarly, the number of the angle measuring devices 2 can be adjusted according to the actual measurement requirement.
Referring to fig. 3, the rotating member is further provided with a contact resistance measuring device for measuring a contact resistance value of the sensor 4.
Wherein the angle measuring devices 2 are arranged side by side or staggered or annularly arranged.
In this embodiment, the sensor 4 is a rotary sensor, including a rotary sensor-35, a rotary sensor-37, a rotary sensor-38, and a rotary sensor-122.
Referring to fig. 2, the angle measuring device 2 includes a first support 15, a second support 14 and a servo motor 7, the servo motor 7 is coaxially connected with a speed reducer 8, the speed reducer 8 is coaxially connected with an encoder 9, the encoder 9 is coaxially connected with one end of a connecting shaft 10, the encoder 9 and the connecting shaft 10 are both disposed in the first support 15, the connecting shaft 10 is rotatably connected with a bearing seat 11 through a bearing, the bearing seat 11 is detachably connected with a bearing end cover 12, the bearing seat 11, the bearing and the bearing end cover 12 are both disposed in the second support 14, the bearing seat 11 penetrates through the second support 14, the second support 14 is disposed on the first support 15, a coupling 13 is disposed at the other end of the connecting shaft 10, and the coupling 13 is used for clamping a transmission shaft of the sensor 4.
Wherein the first supporting frame 15 is used for supporting and fixing the encoder 9 and the speed reducer 8; the second supporting frame 14 is used for supporting and fixing the bearing seat 11 and the fixing structure 3.
In this embodiment, the fixing structure 3 includes a pressing plate 16, the pressing plate 16 is connected with the mounting plate 5, referring to fig. 7, a through hole is formed in the pressing plate 16, the pressing plate 16 is connected with the mounting plate 5 through a thread for axially pressing the sensor 4, a step for radially positioning the sensor 4 is further formed on the pressing plate 16, the shape of the step is determined by the shape of the sensor 4, and meanwhile, the step size is determined by the size of a positioning slot of the sensor 4, so that the angle measuring device 2 can replace the mounting plate 5 and the pressing plate 16 with different specifications to adapt to the sensor 4 with other types.
Referring to fig. 8, the fixing structure 3 may be configured to be a structure in which a bearing seat is engaged with a bearing, and a radial pressing force is applied to the shaft of the sensor 4 through the bearing inner ring, and an axial pressing force is applied to the housing of the sensor 4 through the pressing plate 16.
Referring to fig. 5 and 6, the first supporting frame 15 and the second supporting frame 14 are hollow structures, so as to facilitate the installation and the disassembly of parts.
In this embodiment, the cumulative error for one rotation is ensured to be no more than ±0.01° by the minimum precision of the servo motor 7, the minimum precision of the encoder 9 and the machining precision of the parts in the angle measuring device 2.
Referring to fig. 3, in this embodiment, the input voltage of the power supply is 5V, and the resistor is a precision resistor.
In this embodiment, the contact resistance of the sensor 4 is measured by adopting the method of ohm's law calculation, and the calculation formula is as follows:the voltage of each point is measured by utilizing the principle of constant current in the series circuit, and the resistance of the sensor 4 is calculated by the characteristics of the voltage dividing circuit, so that whether the conduction of the sensor is qualified is judged; the voltage at the second measurement terminal is TEST2 and the voltage at the first side is TEST1.
In this embodiment, when the test environment temperature is between-90 ℃ and-70 ℃, the angle measurement device 2 is disposed in the incubator 6, the incubator 6 is a low-temperature incubator, the temperature in the incubator is maintained between-40 ℃ and-20 ℃, the temperature is within the working temperature range of the electronic components selected by the test equipment, the low-temperature stability performance is low, the test accuracy is ensured in the low-temperature test environment, and the influence of the environmental temperature change on the test result is reduced.
The insulation can 6 comprises from interior to outside heat preservation device, epoxy board, polyurethane foam, the outer covering that sets gradually, heat preservation device includes temperature controller, temperature sensor is connected to temperature controller, temperature sensor will detect temperature acquisition input extremely temperature controller, temperature controller adjusts heating element's input voltage through the temperature of gathering, can effectively carry out temperature control to insulation can 6 inside, epoxy board internal surface coating insulation material, insulation can 6 both sides respectively are equipped with the handle, insulation can 6 bottom is equipped with the stabilizer blade.
The heating component is a heating belt or a heating pipe, and has high heat efficiency, uniform heating and accurate temperature control; the temperature sensor is a patch temperature sensor, and has the advantages of high temperature measurement accuracy, high reaction speed, small volume and convenient fixed installation; the handle and the support leg are required to meet the use environment requirements of-60 ℃ to 80 ℃.
In this embodiment, the device further comprises an industrial personal computer, and the industrial personal computer integrates a control system of the sensor 4 testing device, including the angle measuring device 2 and the contact resistance measuring device.
The testing process comprises the following steps:
referring to fig. 4, the industrial personal computer sends a control command, the control command is transmitted to a control main board through a data acquisition card, the control main board transmits a driving control signal to a motor driver, so that the servo motor 7 is driven to drive the encoder 9 and the sensor 4 to rotate until the sensor 4 moves to the contact of a conductive ring with a spring leaf, the sensor 4 signal changes, the servo motor 7 pauses to rotate, a mechanical angle generated by the servo motor 7 is converted into a 12-bit angle signal by the encoder 9, the 12-bit angle signal is transmitted to the data acquisition card through the control main board data, then an angle value is compiled and displayed on a display interface through upper computer software, angle data is recorded, the contact resistance measuring device is in a conducting state at this time, voltage signals of the first measuring end and the second measuring end are transmitted to the data acquisition card through the control main board data, then the contact resistance value is calculated and displayed on the display interface through upper computer software, and the resistance value data is recorded; after the recording is finished, a control instruction is sent out through the industrial personal computer, the servo motor 7 is continuously driven to drive the encoder 9 and the sensor 4 to rotate until the transmission shaft of the sensor 4 rotates for one circle, and the measurement is finished once.
Claims (6)
1. A rotary sensor testing device, characterized in that: the sensor is fixed on the angle measuring device through a fixing structure, and the rotation axis of the angle measuring device is coaxial with the rotation axis of the sensor; the angle measurement device comprises a first support frame, a second support frame and a servo motor, wherein the servo motor is coaxially connected with a speed reducer, the speed reducer is coaxially connected with an encoder, the encoder is coaxially connected with one end of a connecting shaft, the encoder and the connecting shaft are all arranged in the first support frame, the connecting shaft is connected with a bearing seat through bearing rotation, the bearing seat is detachably connected with a bearing end cover, the bearing seat, the bearing and the bearing end cover are all arranged in the second support frame, the bearing seat penetrates through the second support frame, the second support frame is arranged on the first support frame, the other end of the connecting shaft is provided with a coupler, and the coupler is used for clamping a transmission shaft of the sensor.
2. The rotary sensor testing apparatus of claim 1, wherein: the angle measuring devices may be arranged side by side or staggered or annularly arranged.
3. The rotary sensor testing apparatus of claim 1, wherein: and the rotating part is also provided with a contact resistance measuring device which is used for measuring the contact resistance of the sensor.
4. The rotary sensor testing apparatus of claim 1, wherein: the fixed knot constructs including the clamp plate, the mounting panel is connected to the clamp plate, the mounting panel with second support frame fixed connection.
5. The rotary sensor testing apparatus of claim 1, wherein: the first support frame and the second support frame are hollow structures.
6. The rotary sensor testing apparatus of claim 1, wherein: still include the insulation can, the insulation can comprises from interior to outside heat preservation device, epoxy board, polyurethane foam, the outer covering that sets gradually, heat preservation device includes temperature controller, temperature sensor is connected to temperature controller, temperature sensor will detect temperature acquisition input extremely temperature controller, temperature controller adjusts heating element's input voltage through the temperature of gathering, epoxy board internal surface coating insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321315831.9U CN219829952U (en) | 2023-05-29 | 2023-05-29 | Rotary sensor test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321315831.9U CN219829952U (en) | 2023-05-29 | 2023-05-29 | Rotary sensor test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829952U true CN219829952U (en) | 2023-10-13 |
Family
ID=88284974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321315831.9U Active CN219829952U (en) | 2023-05-29 | 2023-05-29 | Rotary sensor test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829952U (en) |
-
2023
- 2023-05-29 CN CN202321315831.9U patent/CN219829952U/en active Active
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