CN103245853A - Device for measuring responding range of Hall element - Google Patents
Device for measuring responding range of Hall element Download PDFInfo
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- CN103245853A CN103245853A CN2013101383957A CN201310138395A CN103245853A CN 103245853 A CN103245853 A CN 103245853A CN 2013101383957 A CN2013101383957 A CN 2013101383957A CN 201310138395 A CN201310138395 A CN 201310138395A CN 103245853 A CN103245853 A CN 103245853A
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- hall element
- axle
- magnet steel
- zero point
- circuit control
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Abstract
The invention discloses a device for measuring a responding range of a Hall element, relates to a device in the field of automatic control, and aims to solve the problems that the conventional devices are low in measuring accuracy and inaccurate in measurement of the responding range of the Hall element. The device comprises a rotation mechanism and a circuit control device, wherein the circuit control device controls the rotation mechanism to move. The device disclosed by the invention can accurately measure the responding angle range of the Hall element to magnetic steel in the rotation mechanism, and then the accurate limit function of the Hall element is achieved; and the device comprises the rotation mechanism and the circuit control device, the rotation mechanism achieves the relative rotational motion of the magnetic steel to the Hall element, and the circuit control device achieves motor driving and braking, angle output of an encoder and signal control of the Hall element.
Description
Technical field
The present invention relates to automation field, is specifically related to utilize the slew gear frock to realize the relative gyration of Hall element and magnet steel, and by circuit control image data, the final responding range that realizes accurately measuring Hall element.
Background technology
Hall element since have sound construction, volume little, in light weight, be quick on the draw, easy for installation, advantage such as power consumption is little, in various device, be used widely.Usually, Hall element in mechanical mechanism and magnet steel collocation use, as the electric limit switch of gyration.In use, make a magnetic pole of magnet steel near Hall element, Hall element output low level or the signal of closing, the signal of exporting high-potential voltage (high level) or opening when magnetic pole leaves.
Compact when slew gear, when Hall element and magnet steel sensitive surface close together, Hall element and magnet steel self physical dimension can not be ignored the influence of sensed position.In conjunction with Fig. 1, Hall element is in the fixed position, and magnet steel is done gyration with radius R.When magnet steel and Hall element over against the time (the sensitive surface normal overlaps), two sensitive surface are at a distance of L.When L hour, magnet steel and Hall element can respond when namely two sensitive surface normals become A ° of angle over against preceding A ° response, and this response angle is with the reducing and become greatly of two sensitive surface distance L, vice versa.Realize that magnet steel and the effect of Hall element accurate limiting need obtain the accurate numerical value of this response angle.Because magnet steel Distribution of Magnetic Field more complicated is difficult to therefore need survey to obtain the accurate responding range of magnet steel and Hall element by device by calculating this response angle.
Summary of the invention
The present invention exists measuring accuracy low and measure the coarse problem of responding range of Hall element for solving existing apparatus, and a kind of device of measuring the Hall element responding range is provided.
Measure the device of Hall element responding range, this device comprises slew gear and circuit control device; The motion of circuit control device control slew gear; Described slew gear comprises support, axle head gland, axle, Hall element seat, zero point limited block, zero point limited post, scrambler and motor;
Described Hall element seat is fixed on the support, and Hall element is bonded in the groove on the Hall element seat, and described axle is installed in the dead eye of support, and an end of axle is the axle head gland fixedly, and the other end is connected with motor by shaft coupling; Bonding magnet steel in the groove of described axle head gland; Scrambler is installed on the axle, and described zero point, limited block was fixed on the Hall element seat, and zero point, one end of limited post inserted in the square groove of limited block at zero point, and the other end is stuck on the axle.
Principle of work of the present invention: Hall element of the present invention is installed in groove position on the Hall element seat, the Hall element seat is fixed on the support, and magnet steel is fixed on the axle head gland groove position that is fastenedly connected with axle, the cooperation of limited block can be determined Hall element and magnet steel reference position angle by zero-point positioning limited post, zero point, i.e. reference position Hall element sensitive surface normal and magnet steel sensitive surface normal angle α; The precision of this angle guarantees by machining and assembling.Circuit control device control powers on, scrambler output magnet steel reference position angle value β 1; The driven by motor axle rotates to be responded to until Hall element, the stall of circuit control device control this moment motor, scrambler output magnet steel final position angle value β 2; The angular displacement beta that magnet steel turns over=β 2-β 1; And at final position Hall element sensitive surface normal and magnet steel sensitive surface normal angle, namely Hall element is to the induction range 2A=2 (alpha-beta) of magnet steel.Magnet steel is when reference position, and the single-chip microcomputer in the circuit control device is communicated by letter with FPGA earlier, obtains the initial position angle of scrambler, also is the initial position angle of magnet steel, and outputs on the interactive display; Single-chip microcomputer sends the continuous impulse signal to motor then, and drive motor rotates by given pace, drives magnet steel and does gyration with respect to Hall element.In this process, scrambler is exported the real time position angle continuously.In magnet steel entered into the Hall element induction range, Hall element sent signal, and single-chip microcomputer receives signal moment and stops to send the stall of pulse enable signal motor.This moment, the position angle of scrambler output was the final position angle of magnet steel.
Beneficial effect of the present invention:
One, measures accurately, comprise the initial relative position (angle α) of Hall element and magnet steel and the angular displacement (angular displacement beta) that magnet steel rotates owing to influence the factor of measurement precision, the present invention is installed in Hall element and magnet steel respectively on Hall element seat and the axle head gland, be easy to guarantee both installation site accuracies separately by high-accuracy mechanical processing, and by zero point limited post, zero point limited block cooperation guarantee both initial relative positions (angle α).Magnet steel turns to final position whole process by the encoder feedback angle position from reference position, in final position Hall element response moment motor stall, and then the magnet steel stall, so angular displacement (angular displacement beta) measuring accuracy that magnet steel rotates is higher.
Two, device of the present invention can be measured the Hall element of different distance and the induction range of magnet steel.The principal element that influences the induction range of Hall element and magnet steel is distance between the two, namely both over against the time distance L.Hall element is installed in the groove on the Hall element seat, changes the distance L that gash depth can change Hall element and magnet steel by machining.Can determine distance L according to concrete application demand, and then determine to install at the Hall element seat gash depth of Hall element.Therefore apparatus of the present invention are applicable to the induction range measurement of Hall element and the magnet steel of different distance.
Description of drawings
Fig. 1 is existing Hall element and magnet steel induction synoptic diagram;
Fig. 2 is the right view of slew gear in the device of measurement Hall element responding range of the present invention;
Fig. 3 is the external structure synoptic diagram of slew gear in the device of measurement Hall element responding range of the present invention;
Fig. 4 is the schematic internal view of slew gear in the device of measurement Hall element responding range of the present invention;
Fig. 5 is the schematic diagram of circuit control device in the device of measurement Hall element responding range of the present invention.
Embodiment
Embodiment one, in conjunction with Fig. 3 present embodiment is described, measure the device of Hall element responding range, comprise slew gear and circuit control device, realize the relative gyration of Hall element and magnet steel by slew gear, and then combined with circuit control realizes Hall element responding range measurement to magnet steel in slew gear, described slew gear needs to drive magnet steel and does gyration, produces angular displacement with respect to fixing Hall element.Described slew gear comprises support 2, axle head gland 3, Hall element seat 5, zero point limited block 6 and zero point that zero point, limited post 7 was formed is spacing, scrambler 10, shaft coupling 12, motor 13 and axle 4.This slew gear with base 1 and support 2 as fixed support.Hall element seat 5 is fixed on the support 2, and Hall element 9 is bonded in the groove of Hall element seat 5 assigned addresses simultaneously.Rotation axis 4 is to support to constitute axle system with the bearing, is installed in the dead eye of support 2.Axle 4 one ends are connected bonding magnet steel 8 in the groove of axle head gland 3 assigned addresses with axle head gland 3.Axle 4 other ends are connected with motor shaft by shaft coupling 12.Simultaneously at axle 4 the tubular shaft scrambler is installed, the hollow rotary shaft of scrambler 10 is fastenedly connected with axle 4, and the angular displacement that the record axle rotates also is the angular displacement of magnet steel simultaneously.
Circuit control device in the present embodiment is realized functions such as motor-driven, the output of scrambler angle, Hall element response.Circuit control device comprises power supply, single-chip microcomputer, FPGA, motor driver and serial communication; Wherein power supply is single-chip microcomputer, FPGA and motor driver power supply, and single-chip microcomputer is realized driving and the braking of motor by communicating by letter with motor driver.Hall element sends signal when response, and gives single-chip microcomputer with signal feedback.Single-chip microcomputer is communicated by letter with scrambler by FPGA simultaneously, obtains the angle value of encoder feedback, and by serial communication this angle value is presented on the interactive display.
Embodiment two, in conjunction with Fig. 2 and Fig. 4 present embodiment is described, present embodiment is Unit Installation and the course of work of embodiment one described measurement Hall element responding range: at first, earlier axle 4 is installed in the dead eye of support 2 together with bearing during installation, and fixing with bearing gland 17 and bearing lock nut 15 respectively at bearing 16 two ends.Again the tubular shaft scrambler is installed on the axle 4, fixing with scrambler gland 11, tighten the scrambler lock-screw, tubular shaft and axle 4 are fixed together.Then motor 13 is fixed on the motor cabinet 14, and motor cabinet 14 is fixed on the support 2, tighten shaft coupling 12 jackscrews simultaneously, connect motor shaft and axle 4.Axle head gland 3 is fixed on axle 4 spindle noses, and the scrambler seat is fixed on the support 2.Install at last zero point limited post 6 and zero point limited block 7, guarantee the reference position of Hall element 9 and magnet steel 8.
The course of work: give scrambler 10 energisings during measurement earlier, read and record axle 4 current location angle betas 1.Remove zero point limited post 6 and zero point limited block 7, axle system can be rotated.Give motor 13 energisings then, motor shaft drives axle 4 and rotates, and makes magnet steel 8 gradually near Hall element 9, until Hall element 9 responses, motor outage.Read the axle 4 current location angle betas 2 of also record coding device output.Can calculate the turned angular displacement beta of magnet steel=β 2-β 1.Calculate Hall element at last to the induction range 2A=2 (45-β) of magnet steel.
Claims (2)
1. measure the device of Hall element responding range, this device comprises slew gear and circuit control device; The motion of circuit control device control slew gear; It is characterized in that described slew gear comprises support (2), axle head gland (3), axle (4), Hall element seat (5), limited block at zero point (6), limited post at zero point (7), scrambler (10) and motor (13);
Described Hall element seat (5) is fixed on the support (2), Hall element (9) is bonded in the groove on the Hall element seat (5), described axle (4) is installed in the dead eye of support (2), one end of axle (4) is axle head gland (3) fixedly, and the other end is connected with motor (13) by shaft coupling (12); Bonding magnet steel (8) in the groove of described axle head gland (3); Axle (4) is gone up scrambler (10) is installed, and described limited block at zero point (6) is fixed on the Hall element seat (5), and an end of limited post at zero point (7) inserts in the square groove of limited block at zero point (6), and the other end is stuck on the axle (4).
2. the device of measurement Hall element responding range according to claim 1 is characterized in that, described circuit control device comprises single-chip microcomputer, FPGA, motor driver and serial communication; Described single-chip microcomputer is realized driving and the braking of motor by communicating by letter with motor driver; The response signal of Hall element feeds back to single-chip microcomputer; Single-chip microcomputer is communicated by letter with scrambler by FPGA simultaneously, obtains the angle information of encoder feedback, and the angle information of described encoder feedback is exported through serial communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310138395.7A CN103245853B (en) | 2013-04-19 | 2013-04-19 | Device for measuring responding range of Hall element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310138395.7A CN103245853B (en) | 2013-04-19 | 2013-04-19 | Device for measuring responding range of Hall element |
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| CN103245853A true CN103245853A (en) | 2013-08-14 |
| CN103245853B CN103245853B (en) | 2015-06-10 |
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| CN201310138395.7A Expired - Fee Related CN103245853B (en) | 2013-04-19 | 2013-04-19 | Device for measuring responding range of Hall element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438193A (en) * | 2013-09-06 | 2013-12-11 | 哈尔滨工业大学 | Rotary mechanism with mechanical limiting device |
| CN114979401A (en) * | 2022-06-16 | 2022-08-30 | 中国科学院长春光学精密机械与物理研究所 | Open-loop scanning mechanism and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398290A (en) * | 2007-09-25 | 2009-04-01 | 杰克陈 | Angle measurement device |
| JP2009145086A (en) * | 2007-12-11 | 2009-07-02 | Niles Co Ltd | Non-contact rotational angle detecting sensor |
| CN201666795U (en) * | 2010-03-31 | 2010-12-08 | 比亚迪股份有限公司 | Angle sensor |
| CN102102996A (en) * | 2010-12-16 | 2011-06-22 | 重庆易控科技有限责任公司 | Over-360-degree-angle limit sensor device |
| JP2013047694A (en) * | 2008-08-26 | 2013-03-07 | Nikon Corp | Encoder device, and rotation information detecting method for encoder device |
| CN202885777U (en) * | 2012-09-27 | 2013-04-17 | 宁波市北仑机械电器有限公司 | Non-contact type standard current output angular displacement sensor |
-
2013
- 2013-04-19 CN CN201310138395.7A patent/CN103245853B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398290A (en) * | 2007-09-25 | 2009-04-01 | 杰克陈 | Angle measurement device |
| JP2009145086A (en) * | 2007-12-11 | 2009-07-02 | Niles Co Ltd | Non-contact rotational angle detecting sensor |
| JP2013047694A (en) * | 2008-08-26 | 2013-03-07 | Nikon Corp | Encoder device, and rotation information detecting method for encoder device |
| CN201666795U (en) * | 2010-03-31 | 2010-12-08 | 比亚迪股份有限公司 | Angle sensor |
| CN102102996A (en) * | 2010-12-16 | 2011-06-22 | 重庆易控科技有限责任公司 | Over-360-degree-angle limit sensor device |
| CN202885777U (en) * | 2012-09-27 | 2013-04-17 | 宁波市北仑机械电器有限公司 | Non-contact type standard current output angular displacement sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438193A (en) * | 2013-09-06 | 2013-12-11 | 哈尔滨工业大学 | Rotary mechanism with mechanical limiting device |
| CN103438193B (en) * | 2013-09-06 | 2016-01-20 | 哈尔滨工业大学 | A kind of swirl gear with mechanical stop limiter |
| CN114979401A (en) * | 2022-06-16 | 2022-08-30 | 中国科学院长春光学精密机械与物理研究所 | Open-loop scanning mechanism and control method |
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| CN103245853B (en) | 2015-06-10 |
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Granted publication date: 20150610 |