CN212179948U

CN212179948U - Test fixture based on Hall sensor

Info

Publication number: CN212179948U
Application number: CN202021141377.6U
Authority: CN
Inventors: 高倩; 耿港; 齐雪兵
Original assignee: Langfang Xinao Intelligent Technology Co Ltd
Current assignee: Langfang Xinao Intelligent Technology Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-12-18
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a test fixture based on a Hall sensor, which comprises a Hall circuit board bracket, a character wheel, a three-axis micro-adjusting table and a motor; the Hall circuit board support is used for mounting a Hall sensor to be detected and is connected with the three-axis micro-adjustment table, and the three-axis micro-adjustment table can drive the Hall circuit board support to move in the directions of an X axis, a Y axis and a Z axis; the motor is used for driving the character wheel to rotate, the character wheel is provided with a permanent magnet steel, the position opposite to the permanent magnet steel is a debugging 0 point, and the coordinates are (X0, Y0 and Z0). The utility model discloses an anchor clamps use to have static test and the multiple possibility of dynamic test, through relative distance and the angle between the adjustment hall sensor that awaits measuring and permanent magnet steel, can test the output condition of hall sensor and permanent magnet steel under different distances, different angles. When the motor drives the character wheel and the permanent magnet steel to do circular motion, the induction angle of the Hall sensor under a certain coordinate can be tested.

Description

Test fixture based on Hall sensor

Technical Field

The utility model relates to a hall sensor tests technical field, concretely relates to test fixture based on hall sensor.

Background

When the Hall sensor is applied in the current market, the performance of the Hall sensor needs to be tested. The testing method mainly comprises the steps of supplying power to the Hall sensor by using a battery, monitoring the output of the Hall sensor by using an oscilloscope, and manually adjusting the relative position of the permanent magnet steel and the Hall sensor. And judging whether the output of the Hall sensor is normal or not through the output level change of the Hall sensor. The detection method can only detect whether the output of the Hall sensor is normal or not, cannot detect the sensing distance and the sensing angle of the Hall sensor, and cannot provide accurate data for the actual use of the Hall sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can test hall sensor and permanent magnet steel output condition's under different distances, different angles test fixture.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a hall sensor based test fixture, comprising: the device comprises a Hall circuit board support, a character wheel, a three-axis micro-adjustment table and a motor; the Hall circuit board support is used for mounting a Hall sensor to be detected, the Hall circuit board support is connected with the three-axis micro-adjustment table, and the three-axis micro-adjustment table can drive the Hall circuit board support to move in the directions of an X axis, a Y axis and a Z axis; the motor is used for driving the character wheel to rotate, the character wheel is provided with a permanent magnet steel, the position opposite to the permanent magnet steel is a debugging 0 point, and the coordinates are (X0, Y0 and Z0).

Optionally or preferably, in the above test fixture based on the hall sensor, the motor is installed in a motor box, a motor driving box is arranged above the motor box, and a motor driving device is installed in the motor driving box and used for driving the motor in the motor box.

Optionally or preferably, in the hall sensor based test fixture, the three-axis fine adjustment table and the motor box are fixed relatively.

Optionally or preferably, in the test fixture based on the hall sensor, the three-axis fine adjustment table is a three-axis manual fine adjustment table.

Optionally or preferably, in the hall sensor-based test fixture, the motor is a speed reduction motor.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model can adjust the position of the Hall sensor to be measured arranged on the Hall circuit board bracket in the X-axis, Y-axis and Z-axis directions through the three-axis micro-adjustment platform, thereby realizing the change of the relative position of the Hall sensor and the permanent magnet steel; the permanent magnet steel is fixed on the character wheel, and the motor drives the character wheel to rotate, so that the permanent magnet steel can also do circular motion along with the character wheel. After the positions of the Hall sensor and the permanent magnet steel are adjusted, the adjusted coordinates (Xx, Yx, Zx) are recorded, the Hall sensor is powered by a battery, and the output of the Hall sensor is monitored by an oscilloscope, so that the output conditions of the Hall sensor and the permanent magnet steel at different distances and different angles can be tested. The motor driving box is started, the motor drives the permanent magnet steel on the character wheel to do circular motion, and the induction angle of the Hall sensor under a certain coordinate can be tested.

Through accurate coordinate data, the performance of different Hall sensors can be contrastively tested, and the Hall sensor model selection is realized; and accurate data of the relative position of the Hall sensor and the permanent magnet steel can be provided for the practical use of the Hall sensor.

Drawings

FIG. 1 is a schematic view of the overall structure of a Hall sensor-based test fixture of embodiment 1;

reference numerals:

the device comprises a 1-three-axis micro-adjusting table, a 2-Hall circuit board support, a 3-character wheel, a 4-motor driving box and a 5-motor box.

Detailed Description

The technical solution of the test fixture based on hall sensor according to the present invention will be explained and explained in detail with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement the same.

Example 1

Referring to fig. 1, the test fixture based on hall sensor of an embodiment includes a bottom plate, on which a three-axis micro-adjustment table 1 and a motor box 5 are fixed.

The preferred triaxial of fine setting platform 1 is the manual fine setting platform of triaxial, convenient operation practices thrift manufacturing cost. One side that the manual minute platform of triaxial is close to motor box 5 is connected with hall circuit board support 2, and the manual minute platform of triaxial is equipped with the handle of X, Y, Z three directions respectively, can drive hall circuit board support 2 through rotatory these handles and remove in X axle, Y axle and Z axle direction, and then adjusts relative distance and angle between hall circuit board support 2 and the permanent magnet steel.

A motor driving box 4 is arranged above the motor box 5, a speed reducing motor is arranged in the motor box 5, a motor driving device is arranged in the motor driving box 4, and the motor driving device is connected with the speed reducing motor and drives the speed reducing motor to rotate. The character wheel 3 is connected with the transmission output end of the motor and is close to one side of the Hall circuit board bracket 2, a permanent magnet steel is matched on the character wheel 3, the position opposite to the permanent magnet steel is a debugging 0 point, and the coordinates are (X0, Y0 and Z0).

Instructions for use:

(1) mounting a Hall sensor to be tested on a Hall circuit board support 2;

(2) a battery is used for supplying power to the Hall sensor, and an oscilloscope monitors the output of the Hall sensor;

(3) adjusting the three-axis manual micro-adjustment table to the test points (Xx, Yx, Zx), and recording the position coordinates;

(4) observing and recording the output state of the Hall sensor;

(5) and comparing the coordinate of each test point with the coordinate of the modulation 0 point to obtain the relative distance and angle between the Hall sensor and the permanent magnet steel. The output conditions of the Hall sensor and the permanent magnet steel at different distances and different angles can be tested.

(6) And starting the motor driving device, rotating the motor, and driving the character wheel and the permanent magnet steel on the character wheel to do circular motion by the motor. The method comprises the steps of obtaining the sensing time and the non-sensing time of the Hall sensor through the output state of the Hall sensor monitored by an oscilloscope, and calculating the sensing angle of the Hall sensor under a certain coordinate through a formula, wherein the sensing angle is 360 degrees/(sensing time + non-sensing time).

By utilizing the clamp, the performances of different Hall sensors can be contrastively tested through accurate Hall sensor coordinate data, and the Hall sensor type selection is realized.

Because the position which is right opposite to the permanent magnet steel is marked as a point 0, the clamp can also provide accurate data of the relative position of the Hall sensor and the permanent magnet steel for the actual use of the Hall sensor by adjusting the coordinates of the Hall sensor relative to the point 0 in three directions of the X, Y, Z axis, namely the output conditions of the Hall sensor and the permanent magnet steel under different distances and different angles are tested.

And starting the motor driving box 4, driving the permanent magnet steel on the character wheel to do circular motion by the motor, and testing the induction angle of the Hall sensor under a certain coordinate.

The utility model discloses a there are multiple possibilities such as static test and dynamic test in the use of anchor clamps, compare in traditional test fixture, and the usage is more extensive and nimble.

The inventive concept is explained in detail herein using specific examples, and the above description of the embodiments is only used to help understand the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A test fixture based on Hall sensors, comprising: the device comprises a Hall circuit board support, a character wheel, a three-axis micro-adjustment table and a motor;

the Hall circuit board support is used for mounting a Hall sensor to be detected, the Hall circuit board support is connected with the three-axis micro-adjustment table, and the three-axis micro-adjustment table can drive the Hall circuit board support to move in the directions of an X axis, a Y axis and a Z axis;

the motor is used for driving the character wheel to rotate, the character wheel is provided with a permanent magnet steel, the position opposite to the permanent magnet steel is a debugging 0 point, and the coordinates are (X0, Y0 and Z0).

2. The Hall sensor based test fixture of claim 1, wherein the motor is mounted in a motor box, a motor drive box is disposed above the motor box, and a motor drive device is mounted in the motor drive box for driving the motor in the motor box.

3. The hall sensor based test fixture of claim 2 wherein the three axis micropositioner and the motor cartridge are relatively fixed in position.

4. The hall sensor based test fixture of claim 1 wherein the three-axis micropositioner is a three-axis manual micropositioner.

5. The hall sensor based test fixture of claim 1 wherein the motor is a speed reduction motor.