CN112162227A - Automatic test system and test method for magnetic induction sensor - Google Patents
Automatic test system and test method for magnetic induction sensor Download PDFInfo
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- CN112162227A CN112162227A CN202011000476.7A CN202011000476A CN112162227A CN 112162227 A CN112162227 A CN 112162227A CN 202011000476 A CN202011000476 A CN 202011000476A CN 112162227 A CN112162227 A CN 112162227A
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- 238000005259 measurement Methods 0.000 claims abstract description 65
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- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000010330 laser marking Methods 0.000 claims description 15
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses an automatic test system and a test method for a magnetic induction sensor, wherein the automatic test system for the magnetic induction sensor comprises a rack, a test module, a measurement and control module and a defective product recovery module, wherein the rack is provided with a test platform; the testing module comprises a mounting frame, a sensor clamp, a testing body and a testing driving device, the mounting frame is fixedly arranged at the top of the testing platform, the sensor clamp is fixedly arranged at the top of the mounting frame, the sensor clamp is used for fixedly placing a magnetic induction sensor to be tested, the testing body is movably arranged on the mounting frame, the testing body can be provided with a magnetic piece, and the testing driving device is in transmission connection with the testing body and can drive the testing body to move relative to the mounting frame so as to drive the magnetic piece to move relative to the sensor clamp; the measurement and control module is connected with the test driving device and can be detachably connected with the magnetic induction sensor; the defective product recovery module is provided with a defective product recovery inlet and a defective product detection device, and the defective product detection device is arranged on the defective product recovery inlet and is connected with the measurement and control module.
Description
Technical Field
The invention belongs to the technical field of sensor testing, and particularly relates to an automatic testing system and an automatic testing method for a magnetic induction sensor.
Background
The magnetic induction sensor takes a magnetic field as a medium, has the characteristics of non-contact, low power consumption, high reliability, long service life, high response frequency and the like, and is widely applied. Before the magnetic induction sensor leaves a factory, main performance parameters of the magnetic induction sensor must be quantitatively tested to ensure the performance reliability of a product. At present, a manual detection mode is usually adopted to perform function test on the magnetic induction sensor, each step consumes a large amount of time, continuous operation is difficult to perform, the automation degree is low, the test efficiency is low, the test flexibility is low, the test error is large, the reliability of a test result is low, and the use requirement of mass test cannot be met. In addition, the defective products obtained by the test are usually collected separately and randomly, and are not properly handled, and are easily mixed into the defective products by operator error, which results in the defective products flowing out.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an automatic test system and a test method for a magnetic induction sensor, which have the advantages of high automation degree and high test efficiency, can realize continuous test on the magnetic induction sensor, meet the use requirements of large-scale batch test, properly process unqualified magnetic induction sensors obtained by test, effectively prevent the unqualified magnetic induction sensors from being randomly discharged and mixed into qualified magnetic induction sensors, ensure the product quality, have strong practicability and are suitable for popularization and application.
In order to achieve the above object, in one aspect, the present invention provides an automatic test system for a magnetic induction sensor, including: the test device comprises a rack, a test device and a test device, wherein the rack is provided with a test platform; the test module comprises a mounting frame, a sensor clamp, a test body and a test driving device, wherein the mounting frame is fixedly arranged at the top of the test platform, the sensor clamp is fixedly arranged at the top of the mounting frame, the sensor clamp is used for fixedly placing a magnetic induction sensor to be tested, the test body is movably arranged on the mounting frame, the test body can be provided with a magnetic piece, and the test driving device is in transmission connection with the test body and can drive the test body to move relative to the mounting frame so as to drive the magnetic piece to move relative to the sensor clamp; the measurement and control module is connected with the test driving device and can be detachably connected with the magnetic induction sensor; and the defective product recovery module is provided with a defective product recovery inlet and a defective product detection device, and the defective product detection device is arranged at the defective product recovery inlet and is connected with the measurement and control module.
In one example, the sensor clamp and the test body are both adapted to the magnetic induction sensor, the mounting frame is detachably mounted on the top of the test platform, and the sensor clamp is detachably mounted on the top of the mounting frame.
In one example, the defect detection device includes a grating sensor.
In one example, the test module further comprises a wiring plug and a wiring driving device, the wiring plug is arranged opposite to the sensor clamp, and the wiring driving device can drive the wiring plug to move close to or away from the sensor clamp so as to connect or disconnect the wiring plug with or from the joint of the magnetic induction sensor; and the wiring plug and the wiring driving device are connected with the measurement and control module.
In one example, the test module further comprises an in-place detection device, the in-place detection device is arranged at the top of the mounting frame and is opposite to the sensor clamp, and the in-place detection device is connected with the measurement and control module.
In one example, the magnetic induction sensor automatic test system further comprises a laser marking device, wherein the laser marking device is opposite to the sensor clamp and is connected with the measurement and control module.
In one example, the magnetic induction sensor automatic test system further comprises an alarm device, and the alarm device is connected with the measurement and control module.
On the other hand, the invention also provides a magnetic induction sensor testing method, which comprises the following steps:
and 4, locking the test driving device by the measurement and control module and sending out unqualified product prompt information, taking down the unqualified magnetic induction sensor product by the sensor clamp and throwing the unqualified magnetic induction sensor product into a defective product recovery inlet, outputting a defective product throwing signal to the measurement and control module when the defective product detection device detects the unqualified magnetic induction sensor product, unlocking the test driving device by the measurement and control module, and returning to the step 1.
In one example, the step 1 specifically includes the following steps:
step 1.1, fixedly placing a magnetic induction sensor on a sensor clamp, and starting an automatic test system of the magnetic induction sensor;
step 1.2, detecting a magnetic induction sensor on a sensor clamp by an in-place detection device, and outputting an in-place signal of the magnetic induction sensor to a measurement and control module;
and step 1.3, the measurement and control module controls the wiring driving device to drive the wiring plug to move close to the sensor clamp, and the wiring plug is connected with a connector of the magnetic induction sensor, so that the measurement and control module is connected with the magnetic induction sensor.
In one example, the step 3 further comprises: if the mark is qualified, the measurement and control module controls the laser marking device to mark on the magnetic induction sensor.
The automatic test system and the test method for the magnetic induction sensor provided by the invention can bring the following beneficial effects:
1. the test system has the advantages that the measurement and control module is arranged to control the motion of the test body and collect and analyze test signals of the magnetic induction sensor, so that the automatic test of the magnetic induction sensor is realized, the operation and the use are simple and convenient, the time and the labor are saved, the automation degree is high, the test is stable and reliable, the test error is small, the test precision is high, the test result is accurate and reliable, the test efficiency is high, the continuous test of the magnetic induction sensor can be realized, and the use requirements of large-scale batch test are met; simultaneously, through setting up substandard product recovery module, the magnetic induction sensor defective work that the test obtained can be properly handled, effectively prevent that the magnetic induction sensor defective work from putting out in disorder and flowing and sneaking into in the magnetic induction sensor certified work, guarantee product quality, the practicality is strong, is fit for popularizing and applying.
2. Mounting bracket and sensor anchor clamps can be dismantled, can be applicable to the test of multiple different kind and shape dimension's magnetic induction sensor, and application scope is wide, and test module passes through the whole demountable installation of mounting bracket in test platform top moreover, and it is simple swift convenient to change test module during the different magnetic induction sensor of test, and the test flexibility is high, and labour saving and time saving improves efficiency of software testing, fully provided user demand, and the practicality is strong.
3. Through setting up wiring plug and wiring drive arrangement, realize observing and controling module and magnetic induction sensor's automatic patch cord or separation, need not artifical patch cord, labour saving and time saving simplifies the operating procedure, degree of automation is higher, improves efficiency of software testing, and the practicality is strong.
4. Through setting up detection device on throne, whether magnetic induction sensor has been placed on can the automatic identification sensor anchor clamps to the realization pushes down plug wire and automatic test to magnetic induction sensor's automation, improves efficiency of software testing, can avoid the maloperation moreover, prevents to damage the wiring plug, increase of service life, the practicality is strong.
5. Through setting up the laser marking device, can conveniently mark product information to the automatic laser marking of the magnetic induction sensor who places on sensor fixture, be favorable to distinguishing angle, speedtransmitter's certified products and defective work, degree of automation is high, and labour saving and time saving satisfies the test demand, and the practicality is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an automatic testing system of a magnetic induction sensor according to the present invention;
FIG. 2 is a schematic structural diagram of a magnetic induction sensor automatic test system of the present invention with a portion of the structure removed;
FIG. 3 is a schematic diagram of a partially enlarged structure of an automatic testing system of a magnetic induction sensor according to the present invention;
FIG. 4 is a schematic view of a partially enlarged structure of another view angle of the automatic testing system of a magnetic induction sensor according to the present invention;
FIG. 5 is a partially enlarged schematic view of FIG. 4;
FIG. 6 is a schematic structural diagram of a test module according to the present invention;
FIG. 7 is a schematic diagram of a partial enlarged structure of a test module according to the present invention;
FIG. 8 is a schematic structural view of the connector plug and the connector driving device of the present invention;
fig. 9 is a schematic structural view of a defective recycling module according to the present invention.
Detailed Description
In order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1 to 9, an embodiment of the present invention provides an automatic test system 100 for a magnetic induction sensor, which includes a rack 1, a test module 2, a measurement and control module 3, and a defective product recovery module 4, wherein the rack 1 is provided with a test platform 11; the testing module 2 comprises a mounting frame 21, a sensor clamp 22, a testing body 23 and a testing driving device 24, the mounting frame 21 is fixedly arranged at the top of the testing platform 11, the sensor clamp 22 is fixedly arranged at the top of the mounting frame 21, the sensor clamp 22 is used for fixedly placing the magnetic induction sensor 200 to be tested, the testing body 23 is movably arranged on the mounting frame 21, the testing body 23 can be provided with a magnetic piece, and the testing driving device 24 is in transmission connection with the testing body 23 and can drive the testing body 23 to move relative to the mounting frame 21 so as to drive the magnetic piece to move relative to the sensor clamp 22; the measurement and control module 3 is connected with the test driving device 24 and can be detachably connected with the magnetic induction sensor 200; the defective product recovery module 4 is provided with a defective product recovery inlet 41 and a defective product detection device 42, and the defective product detection device 42 is provided in the defective product recovery inlet 41 and connected to the measurement and control module 3. The measurement and control module 3 is arranged to control the motion of the test body 23 and collect and analyze test signals of the magnetic induction sensor 200, so that the automatic test of the magnetic induction sensor 200 is realized, the operation and the use are simple and convenient, the time and the labor are saved, the automation degree is high, the test is stable and reliable, the test error is small, the test precision is high, the test result is accurate and reliable, the test efficiency is high, the continuous test of the magnetic induction sensor 200 can be realized, and the use requirement of large-scale batch test is met; simultaneously, through setting up substandard product recovery module 4, the magnetic induction sensor defective work that the test obtained can be properly handled, effectively prevent that the magnetic induction sensor defective work from putting out in disorder and flowing and sneaking into in the magnetic induction sensor qualified work, guarantee product quality, the practicality is strong, is fit for popularizing and applying.
In one embodiment, the reject recycling inlet 41 is fixedly disposed at the top of the testing platform 11.
Specifically, the sensor clamp 22 and the test body 23 are both adapted to the magnetic induction sensor 200, the mounting frame 21 is detachably mounted on the top of the test platform 11, and the sensor clamp 22 is detachably mounted on the top of the mounting frame 21. Mounting bracket 21 and sensor anchor clamps 22 can be dismantled, can be applicable to the test of multiple different types and shape and size's magnetic induction sensor 200, application scope is wide, and test module 2 passes through the whole demountable installation of mounting bracket 21 in 11 tops of test platform, it is simple swift convenient to change test module 2 when testing different magnetic induction sensor 200, and the test flexibility is high, labour saving and time saving, improves efficiency of software testing, fully provided user demand, the practicality is strong, is fit for popularizing and applying.
In a specific embodiment, the magnetic induction sensor 200 can be an angle sensor, an angular velocity sensor, a speed sensor, a displacement sensor, a reed pipe, a hall switch, or the like, and the corresponding test body 23 can be a rotating shaft, a gear, a cam, a slider capable of rotating or translating, or the like.
Specifically, the defective detecting device 42 includes a grating sensor. The grating sensor is a photoelectric sensor which adopts the principle of grating overlapping stripes for measurement. The grating measurement has the advantages of simple structure, high measurement accuracy, easiness in automation and digitization realization, capability of realizing dynamic rapid real-time detection and the like, effectively detects that unqualified products of the magnetic induction sensor are thrown into the substandard product recycling inlet 41, has high detection accuracy, avoids misjudgment, and has strong practicability.
Specifically, the test module 2 further comprises a wiring plug 25 and a wiring driving device 26, wherein the wiring plug 25 is arranged opposite to the sensor clamp 22, and the wiring driving device 26 can drive the wiring plug 25 to move close to or away from the sensor clamp 22 so as to connect or disconnect the wiring plug 25 with or from the joint 201 of the magnetic induction sensor 200; and the wiring plug 25 and the wiring driving device 26 are both connected with the measurement and control module 3. Through setting up wiring plug 25 and wiring drive arrangement 26, realize observing and controling module 3 and magnetic induction sensor 200's automatic patch cord or separation, need not artifical patch cord, labour saving and time saving simplifies the operating procedure, and degree of automation is higher, improves efficiency of software testing, and the practicality is strong.
In a specific embodiment, the mounting frame 21 includes a top plate 211 and a vertical plate 212, the sensor clamp 22 is fixedly disposed on the top surface of the top plate 211, the vertical plate 212 is vertically and fixedly disposed on the top surface of the top plate 211 and located at one side of the sensor clamp 22, and the connection plug 25 is disposed on the vertical plate 212 and located right above the sensor clamp 22; the wiring driving device 26 drives the wiring plug 25 to move up and down along the vertical direction relative to the vertical plate 212 through pneumatic driving, for example, the cylinder, the wiring plug 25 moves stably and is not easy to shake, and the aerodynamic force can avoid the magnetic induction sensor 200 from being interfered by the electromagnetic field of the motor during testing, so that the electromagnetic interference is reduced.
Specifically, the testing module 2 further includes an in-place detection device 27, the in-place detection device 27 is disposed on the top of the mounting frame 21 and faces the sensor fixture 22, and the in-place detection device 27 is connected to the measurement and control module 3. Through setting up detection device 27 in place, can place magnetic induction sensor 200 on the automatic identification sensor anchor clamps 22 to the realization pushes down plug wire and automatic test to magnetic induction sensor 200's automation, improves efficiency of software testing, can avoid the maloperation moreover, prevents to damage wiring plug 25, increase of service life, the practicality is strong.
In a particular embodiment, the presence detection means 27 comprise a grating sensor.
Specifically, the magnetic induction sensor automatic test system 100 further includes a laser marking device 5, and the laser marking device 5 is disposed over against the sensor fixture 22 and connected to the measurement and control module 3. Through setting up laser marking device 5, can conveniently mark product information to the automatic laser marking of magnetic induction sensor 200 of placing on sensor anchor clamps 22, be favorable to distinguishing qualified products and defective work of angle, speedtransmitter 200, degree of automation is high, and labour saving and time saving satisfies the test demand, and the practicality is strong.
In one embodiment, the laser marking device 5 is positioned on top of the test platform 11 and on one side of the sensor fixture 22 of the test module 2. The automatic magnetic induction sensor testing system 100 further comprises a dust pumping device 6, wherein the dust pumping device 6 is arranged close to the sensor clamp 22 and can pump smoke generated by laser marking, so that the cleanness of the testing platform 11 is kept, and the health of operators is protected.
Specifically, the magnetic induction sensor automatic test system 100 further includes an alarm device 7, and the alarm device 7 is connected with the measurement and control module 3. Through setting up alarm device 7, can in time send warning prompt message when magnetic induction sensor 200 tests nonconforming, remind operating personnel in time to handle, prevent operating personnel maloperation, guarantee product quality, improve efficiency of software testing, the practicality is strong.
In a particular embodiment, the alarm device 7 comprises an alarm lamp arranged on top of the housing 1 and/or a speaker arranged in the housing 1. The automatic test system 100 for the magnetic induction sensor further comprises a display device 8, wherein the display device 8 is connected with the measurement and control module 3 and is used for displaying the test result and the performance parameters of the magnetic induction sensor 200; the display device 8 may be a touch display screen.
With the automatic test system 100 for a magnetic induction sensor provided in the above embodiment, the present invention further provides a test method for a magnetic induction sensor, which includes the following steps:
step 1.1, fixedly placing a magnetic induction sensor 200 on a sensor clamp 22, and starting an automatic test system 100 of the magnetic induction sensor;
step 1.2, the in-situ detection device 27 detects the magnetic induction sensor 200 on the sensor clamp 22 and outputs an in-situ signal of the magnetic induction sensor to the measurement and control module 3;
step 1.3, the measurement and control module 3 controls the wiring driving device 26 to drive the wiring plug 25 to move close to the sensor clamp 22, and the wiring plug 25 is connected with the connector 201 of the magnetic induction sensor 200, so that the measurement and control module 3 is connected with the magnetic induction sensor 200.
And 4, locking the test driving device 24 by the measurement and control module 3, controlling the alarm device 7 to send out product unqualified prompt information, taking the unqualified magnetic induction sensor product down by the sensor clamp 22 and putting the unqualified magnetic induction sensor product into the unqualified product recovery inlet 41, outputting a substandard product input signal to the measurement and control module 3 when the substandard product detection device 42 detects the unqualified magnetic induction sensor product, unlocking the test driving device 24 by the measurement and control module 3, returning to the step 1, and continuing to test the next magnetic induction sensor 200.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An automatic test system for a magnetic induction sensor, comprising:
the test device comprises a rack, a test device and a test device, wherein the rack is provided with a test platform;
the test module comprises a mounting frame, a sensor clamp, a test body and a test driving device, wherein the mounting frame is fixedly arranged at the top of the test platform, the sensor clamp is fixedly arranged at the top of the mounting frame, the sensor clamp is used for fixedly placing a magnetic induction sensor to be tested, the test body is movably arranged on the mounting frame, the test body can be provided with a magnetic piece, and the test driving device is in transmission connection with the test body and can drive the test body to move relative to the mounting frame so as to drive the magnetic piece to move relative to the sensor clamp;
the measurement and control module is connected with the test driving device and can be detachably connected with the magnetic induction sensor; and
the device comprises a defective product recovery module, wherein the defective product recovery module is provided with a defective product recovery inlet and a defective product detection device, and the defective product detection device is arranged at the defective product recovery inlet and is connected with the measurement and control module.
2. The system of claim 1, wherein the sensor fixture and the test body are adapted to the magnetic induction sensor, the mounting frame is detachably mounted on the top of the test platform, and the sensor fixture is detachably mounted on the top of the mounting frame.
3. The magnetic induction sensor automatic test system of claim 1, wherein the fault detection device comprises a grating sensor.
4. The automatic test system for the magnetic induction sensors according to claim 1, wherein the test module further comprises a connection plug and a connection driving device, the connection plug is disposed opposite to the sensor clamp, and the connection driving device can drive the connection plug to move close to or away from the sensor clamp so as to connect or disconnect the connection plug with or from the joint of the magnetic induction sensor; and the wiring plug and the wiring driving device are connected with the measurement and control module.
5. The automatic magnetic induction sensor testing system of claim 1, wherein the testing module further comprises an in-place detection device, the in-place detection device is arranged on the top of the mounting frame and faces the sensor clamp, and the in-place detection device is connected with the measurement and control module.
6. The automatic magnetic induction sensor testing system of claim 1, further comprising a laser marking device, wherein the laser marking device is disposed opposite to the sensor clamp and connected to the measurement and control module.
7. The magnetic induction sensor automatic test system of any one of claims 1 to 6, further comprising an alarm device, wherein the alarm device is connected to the measurement and control module.
8. A magnetic induction sensor testing method comprising the steps of:
step 1, fixedly placing a magnetic induction sensor on a sensor clamp, starting an automatic test system of the magnetic induction sensor, and connecting a measurement and control module with the magnetic induction sensor;
step 2, the measurement and control module controls the test driving device to drive the test body to move, the test body drives the magnetic piece to move relative to the magnetic induction sensor, the magnetic induction sensor senses the movement of the magnetic piece, and the measurement and control module collects test signals output by the magnetic induction sensor;
step 3, the measurement and control module analyzes the test signal, judges whether the magnetic induction sensor is qualified or not, controls the test driving device to stop working, and separates the measurement and control module from the magnetic induction sensor; if the magnetic induction sensor is qualified, taking down the qualified magnetic induction sensor product from the sensor clamp, and returning to the step 1; if not, continuing the next step;
and 4, locking the test driving device by the measurement and control module and sending out unqualified product prompt information, taking down the unqualified magnetic induction sensor product by the sensor clamp and throwing the unqualified magnetic induction sensor product into a defective product recovery inlet, outputting a defective product throwing signal to the measurement and control module when the defective product detection device detects the unqualified magnetic induction sensor product, unlocking the test driving device by the measurement and control module, and returning to the step 1.
9. The magnetic induction sensor testing method according to claim 8, characterized in that the step 1 specifically comprises the steps of:
step 1.1, fixedly placing a magnetic induction sensor on a sensor clamp, and starting an automatic test system of the magnetic induction sensor;
step 1.2, detecting a magnetic induction sensor on a sensor clamp by an in-place detection device, and outputting an in-place signal of the magnetic induction sensor to a measurement and control module;
and step 1.3, the measurement and control module controls the wiring driving device to drive the wiring plug to move close to the sensor clamp, and the wiring plug is connected with a connector of the magnetic induction sensor, so that the measurement and control module is connected with the magnetic induction sensor.
10. The magnetic induction sensor testing method of claim 8, wherein the step 3 further comprises: if the mark is qualified, the measurement and control module controls the laser marking device to mark on the magnetic induction sensor.
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| CN202011000476.7A CN112162227A (en) | 2020-09-22 | 2020-09-22 | Automatic test system and test method for magnetic induction sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705235A (en) * | 2022-05-05 | 2022-07-05 | 佛山市川东磁电股份有限公司 | Sensor testing device |
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