CN104297674A - Hall switch test equipment - Google Patents
Hall switch test equipment Download PDFInfo
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- CN104297674A CN104297674A CN201310626058.2A CN201310626058A CN104297674A CN 104297674 A CN104297674 A CN 104297674A CN 201310626058 A CN201310626058 A CN 201310626058A CN 104297674 A CN104297674 A CN 104297674A
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- hall switch
- test
- switch
- testing apparatus
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Abstract
The invention discloses a piece of Hall switch test equipment comprising a test display circuit used for being connected to an output pin of a to-be-tested Hall switch and a test circuit used for carrying out induction test on the to-be-tested Hall switch. The test circuit comprises an electromagnet and a test power supply connected between two wire outlet ends of an electromagnet coil. A switching switch used for switching the current flow direction of the test circuit is arranged between the electromagnet and the test power supply. The test equipment can be used for determining the type of a Hall switch of an unknown type to see whether the Hall switch is a single-polarity Hall switch or a full-polarity Hall switch, and can be used for detecting the functions of a single-polarity Hall switch or a full-polarity Hall switch of a known type. Operation is simple and accurate, and detection is quick and efficient. A Hall switch can be detected and judged by the state of the test display circuit in the process of switch flipping. Result judgment is visual, and the accuracy is high.
Description
Technical field
The invention belongs to electronic detecting device technical field, relate to a kind of Hall switch testing apparatus.
Background technology
Hall switch is a kind of active magnetoelastic transducer part, it is on the basis of Hall effect, integration packaging and packaging technology is utilized to be made, it can convert magnetic input signal to the electric signal in practical application easily, possesses again the requirement that industrial occasions practical application is easy to operate and reliability is high simultaneously.Hall switch can the change of induced flux, and when magnetic flux reaches certain value, Hall switch conducting, output low level, when magnetic flux is lower than certain threshold value, Hall switch turns off, and exports high-impedance state.Hall switch can be divided into unipolarity Hall switch (numeral exports), bipolarity Hall switch (numeral exports), full polarity Hall switch (numeral exports), linear Hall switch (modulating output) and Micro Energy Lose type Hall switch etc.Traditional Hall switch detects troublesome poeration, and error is large, and detection efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of Hall switch testing apparatus, to solve traditional method of testing test Hall switch troublesome poeration, error is large, the problem that detection efficiency is low.
In order to realize above object, the technical solution adopted in the present invention is: a kind of Hall switch testing apparatus, comprise for being connected to the test display circuit on Hall switch output pin to be measured and the test circuit for testing Hall switch induction to be measured, described test circuit comprises the testing power supply connected between two leading-out terminals of electromagnet and magnet coil, is provided with a change-over switch flowed to for switch test circuital current between described electromagnet and testing power supply.
This testing apparatus also comprises the feed circuit for being connected between Hall switch energization pins to be measured and grounding pin.
Described change-over switch is a double-point double-throw switch.
Described test circuit is also serially connected with a pot.
Described feed circuit are serially connected with a power supply and a power switch.
Described feed circuit are also serially connected with a fuse cutout.
Described test display circuit is serially connected with a test pilot lamp.
Described test display circuit is powered by feed circuit.
Described test display circuit is also serially connected with a resistor.
This testing apparatus also comprises and being respectively used to and the energization pins of Hall switch to be measured, grounding pin, corresponding three the test binding posts connected of output pin.
Hall switch testing apparatus of the present invention comprises the feed circuit for being connected between Hall switch energization pins to be measured and grounding pin, for being connected to the test display circuit on Hall switch output pin to be measured and the test circuit for testing Hall switch induction to be measured, utilize test circuit can carry out type judgement to the Hall switch of UNKNOWN TYPE, see whether it is unipolarity Hall switch or full polarity Hall switch, also Function detection can be carried out to the unipolarity Hall switch of known type or full polarity Hall switch, accurately simple to operate, detect fast, efficiently, pull in process at switch, can detect Hall switch by the state of testing display circuit and judge, result judges directly perceived, accuracy rate is high, can compatible different model, dissimilar Hall switch testing apparatus.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of Hall switch testing apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described further.
Be illustrated in figure 1 the structure principle chart of Hall switch testing apparatus embodiment of the present invention, as seen from the figure, this testing apparatus comprises for being connected to the test display circuit on Hall switch output pin to be measured and the test circuit for testing Hall switch induction to be measured, test circuit comprises the testing power supply P2 connected between two leading-out terminals of electromagnet L1 and magnet coil, is provided with a change-over switch K2 flowed to for switch test circuital current between electromagnet L1 and testing power supply P2.
For ease of connecting, this testing apparatus is also provided with and is respectively used to and the energization pins of Hall switch to be measured, grounding pin, corresponding three the test binding posts connected of output pin, when testing, three of a tested Hall switch pin need be received respectively on three test binding posts, energization pins is received on VCC binding post, grounding pin is received on GND binding post, and output pin is received on OUT binding post.
The change-over switch K2 of the present embodiment adopts a double-point double-throw switch, and A, B contact of this double-point double-throw switch connects the positive pole that two leading-out terminals 1 of magnet coil and 2, A1 and B2 contact meet testing power supply P2 respectively, A2 and B1 contact connects the negative pole of testing power supply P2.
In addition, for ease of adjusting the voltage of test circuit, test circuit is connected in series the A contact that 3 pin that 2 pin of a pot RP1, RP1 and 1 pin connect the leading-out terminal 1, RP1 of magnet coil meet K2.
The present embodiment also comprises the feed circuit for being connected between Hall switch energization pins to be measured and grounding pin, adopt power supply P1(5V) power, these feed circuit are also serially connected with power switch K1 and fuse cutout FU1, K1 adopts single-pole double-throw switch (SPDT), the A2 contact of K1 connects 2 pin of fuse cutout FU1, the A1 contact of K1 is unsettled, and 1 pin of FU1 connects the positive pole of power supply P1, and the negative pole of P1 is connected with GND binding post.Certain K1 also can adopt other switches, such as single-pole single-throw switch (SPST), as long as meet request for utilization.
The test display circuit of the present embodiment adopts test pilot lamp V1(green LED lamp) show, this circuit is also serially connected with resistor R1(300 ohm).This test display circuit is powered by feed circuit, and by the positive pole of connecting test pilot lamp V1 while of the A2 contact of K1, its negative pole is connected with 2 pin of resistor R1, and 1 pin of R1 connects OUT binding post.
The present invention both can carry out type judgement to the Hall switch of UNKNOWN TYPE, see whether it is unipolarity Hall switch or full polarity Hall switch, also Function detection can be carried out to the unipolarity Hall switch of known type or full polarity Hall switch, judge that whether it is normal, now respectively various differentiation process is described.
If Hall switch to be detected its type unknown, detect in the steps below:
1, Hall switch to be measured is fixed to the assigned address near electromagnet, with the magnetic field enabling Hall switch fully sense electromagnet.
2, K1 gets to A2 contact, makes P1 conducting.
3, pull K2, get to first group and second group of moving contact on-state respectively, the magnetic pole of electromagnet is changed, the state of observation test pilot lamp V1.If K2 gets to first group of moving contact on-state, V1 lights, and when K2 gets to second group of moving contact on-state, V1 does not light, then show that this Hall switch is unipolarity Hall switch, respond to very N level; If K2 gets to first group of moving contact on-state, V1 does not light, and K2 gets to second group of moving contact on-state, and V1 lights, then show that this Hall switch is unipolarity Hall switch, respond to very S level; If when K2 gets to first group and second group of moving contact on-state respectively, V1 all lights, then show that this Hall switch is full polarity Hall switch; If K2 gets to first group and second group of moving contact on-state respectively, V1 does not all light, then show this Hall switch damage or this Hall switch neither unipolarity Hall switch, neither polarity Hall switch entirely.
4, be completed, K1 got to A1 contact to close power supply P1, more tested Hall switch device is thrown off with binding post be connected.
If known Hall switch to be detected belongs to unipolarity Hall switch, detect in the steps below:
1, Hall switch is fixed to the assigned address near electromagnet, with the magnetic field enabling Hall switch fully sense electromagnet.
2, K1 gets to A2 contact, makes P1 conducting.
3, pull K2, get to first group and second group of moving contact on-state respectively, the magnetic pole of electromagnet is changed, the state of observation test pilot lamp V1.If K2 is pulling in process, V1 is becoming non-illuminating state from illuminating state or is becoming illuminating state from non-illuminating state, then show that this unipolarity Hall switch is working properly; If K2 is pulling in process, the state of V1 is not changing, then show that this unipolarity Hall switch damages.
4, be completed, K1 got to A1 contact to close power supply P1, more tested Hall switch device is thrown off with binding post be connected.
If known Hall switch to be detected belongs to full polarity Hall switch, detect in the steps below:
1, Hall switch is fixed to the assigned address near electromagnet, with the magnetic field enabling Hall switch fully sense electromagnet.
2, K1 gets to A2 contact, makes P1 conducting.
3, pull K2, get to first group and second group of moving contact on-state respectively, the magnetic pole of electromagnet is changed, the state of observation test pilot lamp V1.If K2 is pulling in process, V1 is all being in illuminating state, then show that this full polarity Hall switch is working properly; If K2 is pulling in process, V1 is being in non-illuminating state always, then show that this full polarity Hall switch damages.
4, be completed, K1 got to A1 contact to close power supply P1, more tested Hall switch device is thrown off with binding post be connected.
Claims (10)
1. a Hall switch testing apparatus, it is characterized in that: comprise for being connected to the test display circuit on Hall switch output pin to be measured and the test circuit for testing Hall switch induction to be measured, described test circuit comprises the testing power supply connected between two leading-out terminals of electromagnet and magnet coil, is provided with a change-over switch flowed to for switch test circuital current between described electromagnet and testing power supply.
2. Hall switch testing apparatus according to claim 1, is characterized in that: this testing apparatus also comprises the feed circuit for being connected between Hall switch energization pins to be measured and grounding pin.
3. Hall switch testing apparatus according to claim 1, is characterized in that: described change-over switch is a double-point double-throw switch.
4. Hall switch testing apparatus according to claim 1, is characterized in that: described test circuit is also serially connected with a pot.
5. Hall switch testing apparatus according to claim 1, is characterized in that: described feed circuit are serially connected with a power supply and a power switch.
6. Hall switch testing apparatus according to claim 5, is characterized in that: described feed circuit are also serially connected with a fuse cutout.
7. Hall switch testing apparatus according to claim 1, is characterized in that: described test display circuit is serially connected with a test pilot lamp.
8. Hall switch testing apparatus according to claim 2, is characterized in that: described test display circuit is powered by feed circuit.
9. Hall switch testing apparatus according to claim 8, is characterized in that: described test display circuit is also serially connected with a resistor.
10. the Hall switch testing apparatus according to claim 2 ~ 9 any one, is characterized in that: this testing apparatus also comprises and being respectively used to and the energization pins of Hall switch to be measured, grounding pin, corresponding three the test binding posts connected of output pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626058.2A CN104297674B (en) | 2013-11-28 | 2013-11-28 | A kind of Hall switch test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626058.2A CN104297674B (en) | 2013-11-28 | 2013-11-28 | A kind of Hall switch test equipment |
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| CN104297674A true CN104297674A (en) | 2015-01-21 |
| CN104297674B CN104297674B (en) | 2018-04-27 |
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| CN201310626058.2A Active CN104297674B (en) | 2013-11-28 | 2013-11-28 | A kind of Hall switch test equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738841A (en) * | 2016-01-21 | 2016-07-06 | 北京小米移动软件有限公司 | Hall element detection method and Hall element detection device |
| CN106771986A (en) * | 2017-03-04 | 2017-05-31 | 三峡电力职业学院 | A kind of Power Electronic Circuit automatic fault diagnosis device |
| CN109991538A (en) * | 2019-05-15 | 2019-07-09 | 格力电器（武汉）有限公司 | Liquid-level switch detection device and method and air conditioner with the device |
| CN111948527A (en) * | 2019-05-15 | 2020-11-17 | 长城汽车股份有限公司 | Hall type brake switch testing device and method and vehicle |
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2013
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738841A (en) * | 2016-01-21 | 2016-07-06 | 北京小米移动软件有限公司 | Hall element detection method and Hall element detection device |
| CN106771986A (en) * | 2017-03-04 | 2017-05-31 | 三峡电力职业学院 | A kind of Power Electronic Circuit automatic fault diagnosis device |
| CN109991538A (en) * | 2019-05-15 | 2019-07-09 | 格力电器（武汉）有限公司 | Liquid-level switch detection device and method and air conditioner with the device |
| CN111948527A (en) * | 2019-05-15 | 2020-11-17 | 长城汽车股份有限公司 | Hall type brake switch testing device and method and vehicle |
| CN109991538B (en) * | 2019-05-15 | 2021-08-03 | 格力电器（武汉）有限公司 | Liquid level switch detection device and method and air conditioner with device |
| CN111948527B (en) * | 2019-05-15 | 2022-07-05 | 长城汽车股份有限公司 | Hall type brake switch testing device and method and vehicle |
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| Publication number | Publication date |
|---|---|
| CN104297674B (en) | 2018-04-27 |
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