Design and Implementation of Portable Test Diagnosis Instrument for a Type of Electronic Equipment

Abstract:

To solve the problem of a type of electronic equipment maintenance, a kind of portable testing instrument is developed. The instrument adopts embedded development, PC104 bus and fault reasoning technology to realize the functions of signal test, fault diagnosis, repair instructions and data query. The instrument is mainly composed of a hand-held chassis, LCD screen, touch screen, Intel main control board, oscilloscope card, multimeter card and power supply module, on the basis of PC104 bus structure. The A/D conversion circuit uses multiple cross parallel high-speed data acquisition architecture to achieve sampling data of higher accuracy and higher speed. The main control board and test function card is designed and the principle of circuit module is described. The signal testing and fault diagnosis software is developed. The instrument has good application effect, with the advantage of practical and portable.

• Periodical: Advanced Materials Research (Volume 1037)
• Pages: 174-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1037.174
• Online since: October 2014
• Authors: Xiao Zhou*, Hai Yan Zhao, Rong Yue Xie, Zhong Tao Zhu
• Keywords: Fault Diagnosis, PC104 Bus, Portable, Signal Test

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