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Implementation method of automatic testing system for shaft angle chip

A technology of automatic test system and implementation method, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., to achieve the effect of improving test efficiency and reliability

Pending Publication Date: 2021-12-07
连云港杰瑞电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under the trend of chip localization, independent research and development is developing rapidly. The independent research and development of axis-angle chips will vigorously promote the development of technology related to axis-angle conversion. Since the functions and characteristics of axis-angle chips are quite different from other conventional chips, in the research and development From testing to mass production, we are faced with more difficulties and problems. Relying on manual testing can only meet the requirements of the research and development stage. Fast and reliable test and measurement of the core functions and performance of chips such as performance requires a test system combining software and hardware to realize automatic testing

Method used

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  • Implementation method of automatic testing system for shaft angle chip
  • Implementation method of automatic testing system for shaft angle chip
  • Implementation method of automatic testing system for shaft angle chip

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, an implementation method of an axis-angle class chip automatic test system, the implementation method is based on the interface control software developed on the LabView platform, cooperates based on the embedded control software developed on the Keil platform, and completes the test and measurement equipment and instruments Parameter setting, manipulation control and data acquisition, realize the communication, data exchange and instruction control between the computer and the main control board, complete the automatic test process, realize the voltage and current of the axis-angle type chip, angle conversion accuracy and integral nonlinear error, speed accuracy and Maximum tracking speed, reference signal frequency, reference center voltage and DC mismatch, reference voltage and AC mismatch, reference voltage and reference voltage suppression, and logic output high level and low level function tests, all data are automatically completed during the test re...

Embodiment 2

[0040] Embodiment 2, the experiment of the implementation method of the automatic test system of the axis angle chip:

[0041] The test equipment supporting the test system includes: computer, integrated cabinet, high-precision axis angle signal source, digital multimeter, multi-program control power supply, main control board, cable and chip positioning fixture, etc. The equipped hardware is rigidly connected by cables , and is controlled, communicated and combined by software, and the human-computer interaction and operation control are completed according to the interface control software, and the communication with the computer, the test instrument and the main control board is realized, the test parameter group is matched according to the predetermined process, and the test cases are mobilized. Chip function indicators are tested, data analyzed, judged and generated reports. refer to figure 1 .

[0042] Specific test items include: voltage and current, angle conversion ...

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Abstract

The invention relates to an implementation method of an automatic testing system for a shaft angle chip, and belongs to the field of automatic testing of chips. According to the method, interface control software developed on the basis of a LabView platform matches embedded control software developed on the basis of a Keil platform to complete parameter setting, manipulation control and data acquisition on equipment and instruments for testing and measuring, so that communication, data exchange and instruction control between a computer and a main control board are realized, an automatic testing process is completed, testing of voltage and current, angle conversion precision and integral nonlinear error, speed precision and maximum tracking speed, reference signal frequency, reference center voltage and direct current mismatch, reference voltage and alternating current mismatch, reference voltage and reference voltage suppression, and logic output high level and low level functions of the shaft angle chip is realized. According to the method, manual testing of corresponding parameters of the chip can be effectively replaced, meanwhile, the testing efficiency of the single chip is improved, and the reliability of testing data is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic testing of axis angle chips and is used for automatic measurement of chips with axis angle calculation functions. The testing system is mainly controlled by testing software to control testing equipment and a main control board to realize chip automatic testing. Background technique [0002] Under the trend of chip localization, independent research and development is developing rapidly. The independent research and development of axis-angle chips will vigorously promote the development of technology related to axis-angle conversion. Since the functions and characteristics of axis-angle chips are quite different from other conventional chips, in the research and development From testing to mass production, we are faced with more difficulties and problems. Relying on manual testing can only meet the requirements of the research and development stage. Fast and reliable test and measurement of the ...

Claims

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Application Information

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IPC IPC(8): G01R31/3181
CPCG01R31/3181
Inventor 颜玲龙李康吴文韬王柳梁龙营张明孟猛
Owner 连云港杰瑞电子有限公司