Dedicated device and method for detecting quality of Hall sensor

A Hall sensor and detection device technology, applied in the field of sensor detection, can solve the problems of high product detection cost, low production efficiency, long detection time, etc., and achieve good batch calibration consistency, no manual intervention error, and improve production efficiency. Effect

Active Publication Date: 2018-11-16
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned detection device can only detect two Hall sensors at the same time, and cannot satisfy multiple sensor detection. Further, the detection device can only detect whether the Hall sensor is faulty, but other characteristic parameters of the Hall sensor are all No detection and statistics were done
[0004] The paper titled "Introduction and Detection Method of Integrated Hall Sensor" published in "Electronic News" in 2003 also recorded the simple meth

Method used

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  • Dedicated device and method for detecting quality of Hall sensor
  • Dedicated device and method for detecting quality of Hall sensor
  • Dedicated device and method for detecting quality of Hall sensor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0061] Embodiment 1,

[0062] like figure 1 , 2 , 3 shown.

[0063] A special detection device for the quality of the Hall sensor, including:

[0064] Hall sensor batch detection board, Hall sensor batch measurement device and computer for processing detection data;

[0065] The Hall sensor batch detection board is used for parallel circuit connection of batch Hall sensors;

[0066] The Hall sensor batch measurement device includes integrated connection: a double-ended power supply unit, a standard source output unit and a data acquisition unit;

[0067] The double-ended power supply unit is a positive and negative power supply for simultaneous power-on or interval power-on; the standard source output unit provides standard source output for the Hall sensor to be tested; The Hall sensor carries out positive and negative power supply input and standard source input respectively, and then the data acquisition unit respectively performs real-time acquisition for the signal o...

Example Embodiment

[0070] Embodiment 2,

[0071] A method for detecting the quality of a Hall sensor using the detection device as described in Embodiment 1, the difference is that the method includes:

[0072] 1. Set the detection value of the Hall sensor:

[0073] Set the standard power supply voltage, zero point error limit, positive and negative stroke linearity standard limit, positive and negative bias voltage limit of the Hall sensor; set the minimum, maximum, and stroke points of the Hall sensor. value-minimum value) / stroke points+1 method, the current setting value of the stroke point is automatically calculated; for example, the minimum value is 0, the maximum value is 50A, and the stroke point 10 is formed according to the calculation formula (50-0) / 10+1=11 The detection points are 0A, 1A, 2A, 3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A; the travel current of the above Hall sensors comes from the standard source module controlled by the computer, the digital input setting value, the analog quant...

Example Embodiment

[0097] Embodiment 3,

[0098] A method for detecting as described in Embodiment 2, the difference is that, in step 2, the positive stroke of the Hall sensor is detected:

[0099] The computer controls the output of the double-ended power supply unit to set the positive and negative voltages as the detected Hall sensor power supply +Vc and -Vc, and controls the standard source current Ip from the minimum value to the maximum value in order to output according to the stroke node control value, each time the current is stable at the stroke point. When the control value, start to collect the output voltage detection value Vs of the Hall sensor, and calculate the error, and then adjust the current at the next stroke point until the maximum current is reached and the detection is completed, calculate the linear value and display whether it is less than the positive stroke linear standard limit : When it is greater than the positive stroke linearity standard limit, it is judged that ...

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Abstract

The invention discloses a dedicated device and method for detecting the quality of a Hall sensor, and the device and method adopt a Hall sensor batch detecting board, a Hall sensor batch measuring device and a computer for processing the detection data as a whole, thereby achieving the batch rapid detection of Hall sensors and a calibration table of each sensor. A producer can replace an electronic device according to the calibration table, and carries out the calibration, thereby greatly improving the production efficiency of the sensor and reducing the labor cost of producing and detecting asingle Hall sensor. The method provided by the invention, the recorded method is solidified in the computer in a form of programs, also can achieve the adjustment of the programs according to a specific application, and finally achieves the batch detection of the Hall sensor.

Description

technical field [0001] The invention discloses a special detection device and a detection method for the quality of a Hall sensor, belonging to the technical field of sensor detection. Background technique [0002] Hall sensors can detect physical quantities such as torque, pressure, stress, position, displacement, speed, acceleration, angle, angular velocity, revolutions, etc., and have high requirements for zero point error and linearity in various situations when working in harsh environments . In order to detect the quality of the Hall sensor, it is necessary to detect the zero point error in different temperatures for a long time, the linearity of the positive and negative strokes, and the linearity under the conditions of positive bias and negative bias voltage. [0003] In the prior art, for Hall sensor detection, it is necessary to manually adjust the input voltage and detection circuit manually, and then compare the detection result with the standard value, and per...

Claims

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Application Information

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IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 张让勇郝凤琦孔志刚李娟孙瑞瑞
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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