TW200806956A - Calibration device in magnetic sensor for inducting magnetic scale - Google Patents

Calibration device in magnetic sensor for inducting magnetic scale Download PDF

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TW200806956A
TW200806956A TW95127218A TW95127218A TW200806956A TW 200806956 A TW200806956 A TW 200806956A TW 95127218 A TW95127218 A TW 95127218A TW 95127218 A TW95127218 A TW 95127218A TW 200806956 A TW200806956 A TW 200806956A
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Taiwan
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signal
sensor
magnetic
unit
display
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TW95127218A
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Chinese (zh)
Inventor
Chih-Mao Shiao
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Hiwin Mikrosystem Corp
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Priority to TW95127218A priority Critical patent/TW200806956A/en
Publication of TW200806956A publication Critical patent/TW200806956A/en

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Abstract

This invention is a calibration device in magnetic sensor for inducting magnetic scale. It primarily comprises: a sensor unit, a display unit, and a signal output unit. The sensor element is consisted of a hall sensor which is capable of generating a square wave when magnetic inductive scale is detected. The display unit is consisted of a display element which is capable of displaying the sensor unit's operating condition. The signal output unit is capable of translating the sensor unit's output signal into a pair of Z and/Z signal, which serves as the input signal for the attached measurement device input signal. With this invention, the sensor will be able to actively notify the user when the sensor unit approaches the magnetic inductive scale to a desired distance. Thus, allowing the user to effectively and correctly install the magnetic inductive scale sensor.

Description

200806956 九、發明說明: 【發明所屬之技術領域】 本發明係與磁性感應尺之感應讀頭有關,更詳而言之, 乃特指一種本身具有顯示單元以顯示正確安裝間距之感應 讀頭裝置,並同時具有參考點訊號輸出功能者。 【先前技術】 傳統磁性尺之感應讀頭安裝方式大概分為下列幾種: 1.使用目視安裝,不需要任何工具輔助,但容易因視覺誤差 • 或個人技術之不同,造成安裝時間距大於有效感應距離,使得感 應讀頭無法正常運作,需衫次4_整、校正,才能使感應讀 頭順利動作; 2·使用尺量方式安裝,於感應讀頭安裝於機台設備上時,使 用量尺測量感應讀頭與磁性尺的安裝間距,以確保落於有效感應 距離内,但此種安裝方式耗時、使用不便,當機具空間狹小時, 不易正確量測; 3·使用專用冶具安裝,利用間隙片等冶具辅助技術人員安 裝’可簡化安裝動作,達到正確安裝之間距,但需針對每一機型 開發適用之輔助冶具,且辅助冶具所需數量不少,造成額外成本 增加,並非為最有效之解決方式。 緣此,有鑑於斯,本案發明人乃經詳思細索,並積多年 從事相關技術之經驗,開發出一種創新裝置,達到改善習知 弊端及符合經濟效益等問題。 【發明内容】 發明所欲解決之技術問題: 200806956 、傳統安裝磁性尺感應讀頭時多採用目視或尺量安裝方式,雖 然其安裝成本及所需工具耗費不多,但卻有著精度不佳及安裝不 ^等問題,使使料用冶具安裝可達到正確安裝之目的,^有 著安裝成本及所需工具耗費增加的問題,再者,當感應讀頭安裝 疋成後’也無法檢測/顯示感應讀頭是否可正確動作。 發明解決問題之技術手段: 種磁性感應尺感應讀頭校正裝置,其主要包含有: 一 SENS0R單元,其係包含有一 HALL SENSOR,該HALL SENSOR係可於偵測到磁性尺時產生一方波訊號; 一號顯示單元,其係包含有一顯示元件,該顯示元件係可 顯示出該SENSOR單元之訊號狀態; 一訊號輸出單元,其係可將該SENS0R單元之訊號轉換成一組 Z及/Z訊號,以傳送至主機供讀取測量之用。 發明對照先前技術之功效: 本發明利用該SENSOR單元之HALL SENSOR感應磁場變 化,當該感應讀頭進入正確之有效感應距離内時,該 SENSOR可輸出一訊號;並驅動該顯示元件變化,使用者不需 藉助任何工具即可將該感應讀頭安裝於正確位置上; 且该顯示元件係可為一 LED元件,當感應讀頭位於有效感 應距離内,沿著磁性尺方向位移時,該LED元件可隨著磁性尺 NS極磁場的變化’而不斷的產生明暗交替閃爍動作,使用者可 藉由該LED元件之閃爍動作,確認該感應讀頭處於正常讀取狀 態; 再者,该訊號輸出單元係包含有一兩極〇P反向放大電路, 200806956 ’其係可將該SE_單元之訊號轉換成一組z及/z訊號,以作為 參考點輸出訊號’使機台接收到參考點訊號,以便利用該訊號控 制機台設備之原點功能。 本叙明之上述及其他目的與優點,不難從下述所選用實 施例之詳細說明與附圖中,獲得更深入瞭解。 當然,本發明在某些另件上,或另件之安排上容許有所 不同’但所翻之實施例,驗本綱書巾,予以詳細說明 ,並於附圖中揭示。 • 【實施方式】 、請參閱第一圖及第二圖圖面所示,本發明一種磁性感應尺 感應頃頭校正裝置,該感應讀頭(1Q)主要包含有·· 一 SENSOR 單元(20),其係包含有一 hall SENS〇R(21), 該HALL SENSOR(21)可藉由霍爾效應的產生以感應磁場之變 化’且輸出一方波訊號;其中,該感應到N 極磁場時,該SENSOR單元(2〇)輸出一 Hi訊號,而當 SENSOR(21)感應到S極磁場時,該SENS〇R單元⑽)輸出一 L〇w ❿訊號。 一訊號顯示單元(30),其係包含有一放大電晶體(31),該放 大電晶體(31)係可將該SENSOR單元(2〇)之訊號輸出至一顯示元 件(32),並驅動該顯示元件(32)變化,以顯示出該SENSOR單 元(20)之訊號狀態;其中,該顯示元件(32)係可為至少一 LED 元件(33),當該SENSOR單元(20)輸出Hi訊號時,該LED元件(33) 熄滅,該SENSOR單元(20)輸出Low訊號時,該LED元件(33) 亮起。 200806956 一 一訊號輸出單元(40),該訊號輸出單元係包含有一兩極op 反向放大電路(41),該兩極叩反向放大電路(41)係包含一叩放 大器(42)、一準位參考電源(43)及一放大比率用電阻(44),其係可 將該SENSOR單元(2〇)之訊號轉換成一組z及/Z訊號,以傳送至 主機供讀取測量之用;當SENS0R單元(2〇)訊號輸出為m時,z 相輸出訊號為Low,/Z訊號輸出為Hi;反之,當SENSOR單元(2〇) 訊號輸出為Low時,Z相輸出訊號為Hi,/Z訊號輸出為Low, 使機台接收到參考點訊號,以便利用該訊號控制機台設備之原點 ⑩功能。 如第三圖圖面所示,由於該SENS〇R單元(2〇)之 SENSOR(21)可藉由霍爾效應以感應磁場之變化,當技術人員開 始安裝感應讀頭(10)時,係由遠而近調整感應讀頭(1〇)之安裝位 置,當感應讀頭(10)進入該磁性尺(50)之有效感應距離内時,可 輸出一方波訊號,並藉由該放大電晶體(31)將該SENS〇R單元(2〇) 之訊號輸出到該顯示元件(32)處,驅動該顯示元件(32)變化,以 ⑩告知技術人員該感應讀頭(10)已位於正確的安裝位置; 再者,由於該SENSOR單元(20)輸出hi訊號時,該LED元 件(33)熄滅,而當該SENS0R單元(2〇)輸出L〇w訊號時,該 疋件(33)亮起;待感應讀頭⑽位於有效感應距離内,沿著磁性 尺(50)方向位移時,該LED元件(33)可隨著磁性尺(5〇)NS極磁場 的變化,而不斷的產生明暗交替閃燦動作,使用者可藉由該㈣ το件(33)之閃爍動作,確認該感應讀頭⑽處於正常讀取狀態; 雖然本案tch個捕:實獅!_觸,但#於 不脫離本案精神與範疇下做各種不同形式的改變。以上;舉實施 200806956 違本 【圖式簡單說明】 第一圖係本發8月之結構示意圖。 第二圖係本發明之電路示意圖。 第三圖係本發明之安裝動作示意圖㈠。 第四圖係本發日月之安裝動作示意圖㈡。 第五圖係本發明之各單元之訊號示意圖。 【主要電路符號說明】 感應讀頭(10) SENSOR 單元(20) HALL SENSOR(21) 訊號顯示單元(30) 放大電晶體(31) 顯示元件(32) LED 元件(33) 訊號輸出單元(40) 兩極op反向放大電路(41) 〇P放大器(42) 準位參考電源(43) 放大比率用電阻(44) 磁性尺(50)200806956 IX. INSTRUCTIONS: [Technical Field] The present invention relates to an inductive read head of a magnetic sensor scale, and more particularly, to an inductive read head device having a display unit itself to display a correct mounting pitch And have the reference point signal output function at the same time. [Prior Art] The installation method of the inductive read head of the traditional magnetic ruler is roughly divided into the following types: 1. Using visual installation, no tool assistance is required, but it is easy to cause the installation time interval to be more than effective due to visual errors or personal techniques. The sensing distance makes the inductive read head unable to operate normally, and the shirt is required to be 4_integrated and corrected to make the inductive read head operate smoothly. 2. Use the ruler to install, when the inductive read head is mounted on the machine equipment, the usage amount The measuring distance between the sensing head and the magnetic ruler is measured to ensure that it falls within the effective sensing distance, but the installation method is time-consuming and inconvenient to use, and when the machine space is small, it is difficult to measure correctly; 3. Use special tooling to install, The use of gaps and other tools to assist the installation of technicians can simplify the installation and achieve the correct installation distance. However, it is necessary to develop suitable auxiliary tools for each model, and the number of auxiliary tools required is large, resulting in an increase in additional costs. The most effective solution. For this reason, in view of this, the inventor of this case has carefully studied and accumulated years of experience in related technologies, and developed an innovative device to improve the drawbacks of the knowledge and economic benefits. SUMMARY OF THE INVENTION The technical problem to be solved by the invention is as follows: 200806956, the conventional installation of the magnetic scale sensing head adopts the visual or the scale installation method, although the installation cost and the required tools are not expensive, but the precision is not good. The installation is not a problem, so that the installation of the tool can achieve the purpose of correct installation, ^ has the problem of installation cost and increased tool consumption, and, when the sensor head is installed, it cannot detect/display the sensor. Whether the read head can operate correctly. The invention provides a magnetic sensor scale sensing head correction device, which mainly comprises: a SENS0R unit, which comprises a HALL SENSOR, the HALL SENSOR system can generate a square wave signal when the magnetic ruler is detected; The first display unit comprises a display component, wherein the display component can display the signal state of the SENSOR unit; and a signal output unit can convert the signal of the SENS0R unit into a set of Z and /Z signals to Transfer to the host for reading measurements. The invention compares the effects of the prior art: the invention utilizes the HALL SENSOR of the SENSOR unit to induce a magnetic field change, and when the inductive read head enters the correct effective sensing distance, the SENSOR can output a signal; and drive the display element to change, the user The inductive read head can be mounted in the correct position without any tools; and the display element can be an LED element, and the LED element is displaced when the inductive read head is within the effective sensing distance and is displaced along the magnetic scale. The light and dark alternate flashing motion can be continuously generated along with the change of the magnetic field NS pole magnetic field, and the user can confirm that the sensing head is in the normal reading state by the blinking action of the LED element; further, the signal output unit The system includes a two-pole 〇P inverting amplifying circuit, 200806956 'the system can convert the signal of the SE_ unit into a set of z and /z signals for use as a reference point output signal to enable the machine to receive the reference point signal for use This signal controls the origin function of the machine. The above and other objects and advantages of the present invention will become more apparent from the detailed description and the accompanying drawings. Of course, the present invention allows for different 'on the other's parts, or the arrangement of the parts. However, the embodiment of the invention is described in detail, and is described in detail in the drawings. • [Embodiment] Please refer to the first figure and the second figure. The magnetic induction sensor sensing head correction device of the present invention mainly includes a SENSOR unit (20). The system includes a hall SENS〇R (21), which can generate a change of the magnetic field by the generation of the Hall effect and output a one-wave signal; wherein, when the N-pole magnetic field is sensed, The SENSOR unit (2〇) outputs a Hi signal, and when SENSOR (21) senses the S-pole magnetic field, the SENS〇R unit (10) outputs a L〇w ❿ signal. a signal display unit (30) comprising an amplifying transistor (31) for outputting the signal of the SENSOR unit (2〇) to a display element (32) and driving the signal The display element (32) is changed to display the signal state of the SENSOR unit (20); wherein the display element (32) can be at least one LED element (33), when the SENSOR unit (20) outputs a Hi signal The LED element (33) is turned off, and when the SENSOR unit (20) outputs a Low signal, the LED element (33) lights up. 200806956 A signal output unit (40), the signal output unit comprises a two-pole op reverse amplifier circuit (41), the two-pole 叩 reverse amplifier circuit (41) comprises a 叩 amplifier (42), a level reference The power supply (43) and an amplification ratio resistor (44) are capable of converting the signal of the SENSOR unit (2〇) into a set of z and /Z signals for transmission to the host for reading and measuring; when the SENS0R unit (2〇) When the signal output is m, the z phase output signal is Low, the /Z signal output is Hi; conversely, when the SENSOR unit (2〇) signal output is Low, the Z phase output signal is Hi, /Z signal output For Low, the machine receives the reference point signal to use the signal to control the origin 10 function of the machine equipment. As shown in the third figure, since the SENSOR (21) of the SENS〇R unit (2〇) can induce a change in the magnetic field by the Hall effect, when the technician starts to install the inductive read head (10), Adjusting the mounting position of the inductive read head (1〇) from far to near, when the inductive read head (10) enters the effective sensing distance of the magnetic scale (50), the square wave signal can be output, and the amplified transistor is output (31) outputting the signal of the SENS〇R unit (2〇) to the display element (32), driving the display element (32) to change, and telling the technician that the inductive read head (10) is already in the correct state. The mounting position; further, when the SENSOR unit (20) outputs the hi signal, the LED element (33) is turned off, and when the SENS0R unit (2〇) outputs the L〇w signal, the element (33) lights up. When the inductive read head (10) is located within the effective sensing distance and is displaced along the magnetic scale (50), the LED element (33) can continuously produce light and dark alternating with the magnetic field of the magnetic scale (5〇) NS. The flashing action, the user can confirm that the sensing head (10) is in the normal reading state by the flashing action of the (4) τ ο (33); This case tch catch: the real lion! _ touch, but # # does not leave the spirit and scope of the case to make a variety of different forms of change. Above; implementation 200806956 Violation [Simplified illustration] The first picture is the structure diagram of the August issue. The second figure is a schematic diagram of the circuit of the present invention. The third figure is a schematic diagram of the mounting operation of the present invention (1). The fourth picture is a schematic diagram of the installation action of the sun and the moon (2). The fifth figure is a schematic diagram of the signals of the units of the present invention. [Main circuit symbol description] Inductive read head (10) SENSOR unit (20) HALL SENSOR (21) Signal display unit (30) Amplifying transistor (31) Display element (32) LED element (33) Signal output unit (40) Two-pole op inverting amplifier circuit (41) 〇P amplifier (42) Level reference power supply (43) Magnification ratio resistor (44) Magnetic ruler (50)

Claims (1)

200806956 ^ 十、申請專利範圍: 1· 一種磁性感應尺感應讀頭校正裝置,其主要包含有: 一 SENSOR單元,其係包含有一 HALL SENSOR,該 HALL SENSOR係可於偵測到磁性尺時產生一方波訊號; 一訊號顯示單元,其係包含有一顯示元件,該顯示元 件係可顯示出該SENSOR單元之訊號狀態; 一訊號輸出單元,其係可將該SENSOR單元之訊號轉換 成一組Z及/Z訊號,以傳送至主機供讀取測量之用。 拳 2.如申請專利範圍第1項所述之磁性感應尺感應讀頭校正 裝置,其中,該HALL SENSOR感應到N極磁場時,該 SENSOR單元輸出Hi訊號,而當HALL SENSOR感應到s 極磁場時,該SENSOR單元輸出Low訊號。 3·如申請專利範圍第1項所述之磁性感應尺感應讀頭校正 裝置,其中,該訊號顯示單元係包含有一放大電晶體,該 放大電晶體係可將該SENSOR單元之訊號輸出到該顯示元 件,以驅動該顯示元件變化。 肇4·如申請專利範圍帛1項所述之磁性感應尺感應讀頭校正 裝置,其中,該顯示元件係為一 LED元件。 5·如申請專利範圍第4項所述之磁性感應尺感應讀頭校正 裝置,其中,當該SENSOR單元輸出Hi訊號時,該LED 元件熄滅,該SENSOR單元輸出]l〇w訊號時,該LED元 件亮起。 6·如申請專利範圍第1項所述之磁性感應尺感應讀頭校正 裝置,其中,该訊號輸出單元係包含有一兩極op反向放 200806956 ^ 大電路。 7.如申請專利範圍第1項所述之磁性感應尺感應讀頭校正 裝置,其中,該兩極op反向放大電路係包含一 ορ放大器、 一準位參考電源及一放大比率用電阻。 11200806956 ^ X. Patent application scope: 1. A magnetic sensor scale sensing head correction device, which mainly comprises: a SENSOR unit, which comprises a HALL SENSOR, which can generate a magnetic ruler when detecting a magnetic ruler A signal display unit, comprising: a display component, wherein the display component can display the signal state of the SENSOR unit; and a signal output unit, wherein the signal of the SENSOR unit can be converted into a set of Z and /Z The signal is transmitted to the host for reading measurements. 2. The magnetic sensor scale inductive read head correcting device according to claim 1, wherein the SENSOR unit outputs a Hi signal when the HALL SENSOR senses an N pole magnetic field, and the s pole magnetic field is sensed when the HALL SENSOR senses The SENSOR unit outputs a Low signal. 3. The magnetic sensor scale inductive read head correcting device according to claim 1, wherein the signal display unit comprises an amplifying transistor, and the amplifying crystal system can output the signal of the SENSOR unit to the display. An element to drive the display element to change. The magnetic sensor scale inductive read head correcting device according to claim 1, wherein the display element is an LED element. 5. The magnetic sensor scale inductive read head correcting device according to claim 4, wherein when the SENSOR unit outputs a Hi signal, the LED element is turned off, and when the SENSOR unit outputs a l〇w signal, the LED The component lights up. 6. The magnetic sensor scale inductive read head correction device according to claim 1, wherein the signal output unit comprises a two-pole op reverse amplifier 200806956 ^ large circuit. 7. The magnetic sensor scale inductive read head correcting device according to claim 1, wherein the two-pole op inverting amplifying circuit comprises a ορ amplifier, a level reference power supply and an amplification ratio resistor. 11
TW95127218A 2006-07-26 2006-07-26 Calibration device in magnetic sensor for inducting magnetic scale TW200806956A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104049229A (en) * 2014-05-28 2014-09-17 苏州中盛纳米科技有限公司 Method for generating standard high frequency alternating magnetic field
TWI689704B (en) * 2018-12-21 2020-04-01 財團法人工業技術研究院 Magnetic position sensing device and method
US10948315B2 (en) 2018-12-21 2021-03-16 Industrial Technology Research Institute Magnetic position detecting device and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104049229A (en) * 2014-05-28 2014-09-17 苏州中盛纳米科技有限公司 Method for generating standard high frequency alternating magnetic field
CN104049229B (en) * 2014-05-28 2017-01-18 苏州中盛纳米科技有限公司 Method for generating standard high frequency alternating magnetic field
TWI689704B (en) * 2018-12-21 2020-04-01 財團法人工業技術研究院 Magnetic position sensing device and method
US10948315B2 (en) 2018-12-21 2021-03-16 Industrial Technology Research Institute Magnetic position detecting device and method

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