直流比较仪式电桥测量标准电阻时消除寄生电势影响方法的研究  

Research on the method of eliminating the effects of parasitic potential when measuring stand resistance by D.C. comparator bridge

作　　者：吕光明 Lv GuangMing

机构地区：[1]福建省计量科学研究院

出　　处：《木工机床》2019年第3期13-16,共4页Woodworking Machinery

摘　　要：使用直流比较仪式电桥测量500Ω及以下电阻时,为了能使测量准确度达到百万分之一,必须消除寄生电势影响。本文从理论和操作上对消除寄生电势进行了论述,确保标准电阻测量时可基本消除寄生电势影响,以保证测量的准确性。When measuring resistance of 500Ωand below with D.C.comparator Bridge,In order to make the measurement accu racy reach one millionth of a millionth,The parasitic potential must be eliminated.In this paper,the elimination of parasitic potential is discussed theoretically and operationally,Ensure that parasitic potential is eliminated in standard resistance measurements,Guar antee the accuracy of measurement.

关 键 词：直流比较仪式电桥 标准电阻 寄生电势 不完全平衡法虚设零位 

分 类 号：TM938.4[电气工程—电力电子与电力传动]