Magnetic sensitive parameter and electrical parameter integrated testing device of Hall voltage sensor

Abstract

The utility model discloses a magnetic sensitive parameter and electrical parameter integrated testing device of a Hall voltage sensor, which is characterized in that a testing interface board is arranged in a testing box body, the testing interface board is provided with a quick plug interface used for connecting a Hall voltage sensor to be tested, and a magnetic field generating unit and a magnetic field testing unit are fixedly arranged in the testing box body. The magnetic field test unit is connected with the Hall voltage sensor to be tested through the test interface board and is used for testing the Hall voltage sensor to be tested; according to the Hall voltage sensor testing device, the testing interface board, the magnetic field generating unit and the magnetic field testing unit are installed in an integrated mode through the testing box body, the stability of a testing circuit is ensured, the data acquisition card is adopted for data acquisition, and the testing efficiency is improved. Interference to the Hall voltage sensor to be tested and troublesome data connection in the direct acquisition process are avoided, and the test efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of test equipment and meets the requirements of testing the electrical parameters of electronic components. Specifically, it relates to an integrated test device for magnetic and electrical parameters of a Hall voltage sensor. Background Art

[0002] The magnetic, electrical, and dynamic parameters of a Hall sensor are the core parameters of the sensor and can comprehensively characterize the performance parameters of a device. The existing test method is to remove the Hall sensor from the motor or related equipment, connect its voltage output terminal to a multimeter, approach the Hall sensor, and observe the voltage change on the multimeter. By adjusting the polarity of the magnet or changing the magnetic field strength, observe whether the voltage changes accordingly. If the voltage shows a downward trend (or according to the specific design, the voltage should have an obvious change), it indicates that the Hall sensor is working properly. On the contrary, if the voltage remains unchanged, it may indicate that the Hall sensor is damaged or has poor performance. The existing test methods and devices can only test functional parameters. If magnetic and dynamic parameters need to be tested, special circuits need to be manually connected for testing. Currently, there is no circuit structure that can perform stable testing, and the stability of the test loop is poor, the test accuracy and repeatability are poor, and the coverage of test parameters is poor.

[0003] In view of the above problems, it is necessary to design a test design scheme with higher precision, stronger stability, and complete capabilities by combining the test principles of the magnetic and dynamic parameters of the Hall voltage sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated test device for magnetic and electrical parameters of a Hall voltage sensor to overcome the problems of poor stability of the test loop, poor test accuracy and repeatability in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] An integrated test device for magnetic and electrical parameters of a Hall voltage sensor includes a test box body. A test interface board is arranged in the test box body. A quick plug interface for connecting the Hall voltage sensor to be tested is arranged on the test interface board. A magnetic field generating unit and a magnetic field testing unit are fixedly installed in the test box body. The magnetic field generating unit is arranged on one side of the Hall voltage sensor to be tested and is used to control the magnetic induction intensity. A data acquisition card is inserted on the test interface board, and the data acquisition card is used to collect the output data of the Hall voltage sensor to be tested.

[0007] Preferably, a test power supply is arranged in the test box body.

[0008] Preferably, the test power supply specifically adopts a storage battery or an AC power supply.

[0009] Preferably, the magnetic field generating unit includes a fixed bracket fixed inside the test box and a magnet that can slide on the bracket.

[0010] Preferably, a sliding seat is provided on the fixed bracket, and the magnet is fixed on the sliding seat.

[0011] Preferably, a driving device is provided on one side of the fixed bracket, and the driving device can drive the sliding seat to slide on the fixed bracket.

[0012] Preferably, the driving device adopts a pneumatic driving device or an electric motor driving device.

[0013] Preferably, the magnet specifically adopts a neodymium iron boron magnet.

[0014] Preferably, the fixed bracket is fixed inside the test box by screws.

[0015] Preferably, a test interface board seat is provided on the test box, and the test interface board is installed in the test interface board seat.

[0016] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0017] The present utility model provides an integrated test device for magnetic sensitivity parameters and electrical parameters of a Hall voltage sensor, which specifically includes a test box. A test interface board is arranged inside the test box, and a quick plug interface for connecting the Hall voltage sensor to be tested is arranged on the test interface board. A magnetic field generating unit and a magnetic field testing unit are fixedly installed inside the test box. The magnetic field generating unit is arranged on one side of the Hall voltage sensor to be tested for controlling the magnetic induction intensity; the magnetic field testing unit is connected to the Hall voltage sensor to be tested through the test interface board for testing the Hall voltage sensor to be tested; a data acquisition card is inserted on the test interface board, and the data acquisition card is used for collecting the output data of the Hall voltage sensor to be tested. This application uses the test box to integrally install the test interface board, the magnetic field generating unit and the magnetic field testing unit, ensuring the stability of the test circuit. The data acquisition card is used for data acquisition to avoid interference to the Hall voltage sensor to be tested during the direct acquisition process and the trouble of connecting data, and can greatly improve the test efficiency at the same time. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an integrated test device for magnetic sensitivity parameters and electrical parameters of a Hall voltage sensor in an embodiment of the present utility model.

[0019] In the figure, (1), test box; (2), test interface board; (3), Hall voltage sensor to be tested; (4), magnetic field generating unit; (5), magnetic field testing unit; (6), data acquisition card; (7), test power supply; (8), fixed bracket; (9), magnet; Detailed implementation mode

[0020] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] As Figure 1 shown, the present utility model provides an integrated test device for magnetic and electrical parameters of a Hall voltage sensor, which specifically includes a test box body (1). A test interface board (2) is arranged in the test box body (1). A quick plug interface for connecting the Hall voltage sensor to be tested (3) is arranged on the test interface board (2). A magnetic field generating unit (4) and a magnetic field testing unit (5) are fixedly installed in the test box body (1). The magnetic field generating unit (4) is arranged on one side of the Hall voltage sensor to be tested (3) for controlling the magnetic induction intensity. The magnetic field testing unit (5) is connected to the Hall voltage sensor to be tested (3) through the test interface board (2) for testing the Hall voltage sensor to be tested (3). A data acquisition card (6) is inserted on the test interface board (2). The data acquisition card (6) is used to acquire the output data of the Hall voltage sensor to be tested (3). In this application, the test interface board (2), the magnetic field generating unit (4) and the magnetic field testing unit (5) are integrally installed by using the test box body (1), ensuring the stability of the test circuit. The data acquisition card is used for data acquisition to avoid the interference caused to the Hall voltage sensor to be tested (3) during the direct acquisition process and the trouble of connecting data, and at the same time can greatly improve the test efficiency. A test interface board seat is arranged on the test box body (1), and the test interface board (2) is installed in the test interface board seat.

[0023] In a specific embodiment of the present application, a test power supply (7) is provided inside the test box body (1), and the test power supply (7) is used to provide test power for the system.

[0024] In a specific embodiment of the present application, the test power supply (7) specifically adopts a storage battery, which can be embedded in the test box body (1) for easy carrying; a fast charging interface is provided on the storage battery, which can quickly charge the storage battery.

[0025] In another embodiment of the present application, the test power supply (7) adopts an AC power supply, which is connected to the AC circuit through a transformer, and uses the stable characteristics of the AC power supply to ensure the stable progress of the test process.

[0026] In a specific embodiment of the present application, as Figure 1 shown, the magnetic field generating unit (4) includes a fixed bracket (8) fixed inside the test box body (1) and a magnet (9) that can slide on the bracket. The magnetic induction intensity is controlled by changing the distance between the magnet (9) and the Hall voltage sensor (3) to be measured.

[0027] In a specific embodiment of the present application, the fixed bracket (8) is fixed inside the test box body (1) by screws.

[0028] A sliding seat (10) is provided on the fixed bracket (8), and the magnet (9) is fixed on the sliding seat (10).

[0029] A driving device is provided on one side of the fixed bracket (8), and the driving device can drive the sliding seat (10) to slide on the fixed bracket (8).

[0030] Specifically, in an embodiment of the present application, the driving device adopts a pneumatic driving device or an electric motor driving device; the pneumatic driving device includes a cylinder, the cylinder is fixed on one side of the fixed bracket (8), and the end of the cylinder is fixed on the sliding seat (10), and the cylinder is used to drive the sliding seat (10) to move on the fixed bracket (8).

[0031] The electric motor driving device includes an electric motor fixed on one side of the fixed bracket (8). A driving lead screw is fixed on the output shaft of the electric motor. A nut that can mesh with the driving lead screw is provided at the bottom of the sliding seat (10). It is driven by the lead screw structure of the electric motor, with stable structure and high adjustment accuracy.

[0032] In a specific embodiment of the present application, the magnet (9) specifically adopts a neodymium iron boron magnet, with stable magnetism to ensure the accuracy of the test results.

[0033] The output data of the Hall voltage sensor (3) to be measured specifically includes the output level of the Hall voltage sensor (3) to be measured and the current magnetic induction intensity. Then, the collected data is analyzed through an external system, and various parameters of the Hall voltage sensor (3) to be measured can be obtained. In this application, the test box (1) is used to integrally install the test interface board (2), the magnetic field generating unit (4), and the magnetic field testing unit (5), ensuring the stability of the test circuit. A data acquisition card is used for data acquisition to avoid interference with the Hall voltage sensor (3) to be measured during the direct acquisition process and the trouble of connecting data, and at the same time, the test efficiency can be greatly improved.

[0034] In a specific embodiment of this application, the magnetic field testing unit (5) adopts a programmable test module, which can adjust and set the test program according to the model of the test device, and can ensure the rapid detection of the device to be measured corresponding to the model.

Claims

1. An integrated test device for magnetic and electrical parameters of a Hall voltage sensor, characterized in that, It includes a test box body (1). A test interface board (2) is arranged inside the test box body (1). A quick plug interface for connecting a Hall voltage sensor to be tested (3) is arranged on the test interface board (2). A magnetic field generating unit (4) and a magnetic field testing unit (5) are fixedly installed inside the test box body (1). The magnetic field generating unit (4) is arranged on one side of the Hall voltage sensor to be tested (3) and is used to control the magnetic induction intensity. A data acquisition card (6) is inserted on the test interface board (2), and the data acquisition card (6) is used to collect the output data of the Hall voltage sensor to be tested (3).

2. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 1, characterized in that, A test power supply (7) is arranged inside the test box body (1).

3. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 2, characterized in that The test power supply (7) specifically uses a storage battery or an AC power supply.

4. The integrated test device for magnetic sensitivity parameters and electrical parameters of a Hall voltage sensor according to claim 1, characterized in that, The magnetic field generating unit (4) includes a fixed bracket (8) fixed inside the test box body (1) and a magnet (9) that can slide on the bracket.

5. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 4, wherein A sliding seat (10) is arranged on the fixed bracket (8), and the magnet (9) is fixed on the sliding seat (10).

6. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 5, characterized in that, A driving device is arranged on one side of the fixed bracket (8), and the driving device can drive the sliding seat (10) to slide on the fixed bracket (8).

7. An integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 6, characterized in that, The driving device uses a pneumatic driving device or a motor driving device.

8. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 4, characterized in that, The magnet (9) specifically uses a neodymium iron boron magnet.

9. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 1, characterized in that, The fixed bracket (8) is fixed inside the test box body (1) by screws.

10. The integrated test device for magnetic and electrical parameters of a Hall voltage sensor according to claim 1, characterized in that, A test interface board seat is arranged on the test box body (1), and the test interface board (2) is installed inside the test interface board seat.

Images