基于LabVIEW自动测试系统的测量误差分析及优化

Analysis and Optimization of Measurement Errors Based on LabVIEW Automatic Test System

在静态测试和动态测试中都会不可避免的产生测量误差,由于测量误差具有不可避免性,因此,应加强误差控制,保证测量结果准确与真实。本文主要针对基于LabVIEW自动测试系统的测量误差进行分析及优化。首先对自动测试系统的发展进行介绍,并对基于LabVIEW自动测试系统的组成及现状进行分析。然后在对自动测试系统随机误差及系统误差产生的原因,传递过程进行分析的基础上,给出优化措施。最后以轨道交通装备基地现场测试所存在的实际问题为案例,对测试线长度、仪器本身及地线三个方面对误差的影响进行分析并给出改进措施。

Measurement errors are inevitable in both static and dynamic tests.Because of the inevitability of measurement errors,it is necessary to strengthen error control to ensure the accuracy and authenticity of measurement results.This paper mainly analyzes and optimizes the measurement error of automatic test system based on LabVIEW.Firstly,the development of automatic test system is introduced,and the composition and current situation of automatic test system based on LabVIEW are analyzed.Then,based on the analysis of the random error,the cause of system error and the transfer process,the optimization measures are given.Finally,taking the practical problems existing in the field test of rail transit equipment base as an example,the influence of test line length,instrument itself and ground wire on the error is analyzed and improvement measures are given.