虚拟仪器自动测试系统的自检方法

Design for Self-Test of Automatic Test System Based on Virtual Instrument

虚拟仪器自动测试系统自检的目的是检查和保证通用测试接口的可靠性和可用性,包括信号源和示波器、模数转换器和数模转换器、数字类仪器、电源和万用表、信号调理模块及仪器的输入输出参考端等的自检。自检软件可用LabWindows/CVI或LabVIEW开发,并根据自检方法和电路确定自检算法和流程。

The purpose of self-test of the Automatic Test System （ATS） which is based on Virtual Instrument （VI） is to check and ensure reliability and usability of the ATS＇s General Test Interface （GTI）. The system includes signal source and scope, analog-to-digital converter and digital-to-anal0g converter, digital instrument, power supply and universal meter, signal conditioning module and electrical reference of instrument＇s input or output signal. The self-test software could be developed by using LabWindows/CVl or LabVIEW, and self-test algorithm and flow could be determined according to self-test method and electric circuit.