褚衍廷 余雨婷 温占燕




摘要: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。
Abstract: 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.
关键词:自动测试系统;随机误差;系统误差;优化措施
Key words: automatic test system;random error;system error;optimizing measures
中图分类号:P207+.1 文献标识码:A 文章编号:1674-957X(2021)16-0193-03
0 引言
在测量期间,测量获得的结果、真实参数之间的差距,称为测量误差。真实参数在客观环境中,具有存在的真实性,能够在特定时空环境中展现出事物真实状态,在表达时存在局限性。在测量过程中,想要获得待测结果的真实情况,减少误差具有必要性。测量工作,应遵循一定原理、测量技巧、特定测量设备,在受控环境中,由专业人士完成测量工作,以保障测量准确。由于测量操作,在理论认知、实践活动方面,存在着相似性,无法保障测量方法的完善性。同时在实验仪器精准度、测量精确性方面,存在测量精度控制的局限性。加之环境因素作用,在多方干扰条件下,将会形成测量结果与真实值之间的差距,统称为误差。……