万用表在电路测试中的几个应用技巧  

Some Avometer Application Skills in Circuit Testing

作　　者：刘立航[1] 

机构地区：[1]中南民族学院电子工程系

出　　处：《中南民族学院学报（自然科学版）》2000年第4期18-20,共3页Journal of South-Central University for Nationalities(Natural Sciences)

摘　　要：分析了指针式万用表非线性的电阻档的线性利用 ,指出了测量半导体器件应从半导体PN结的伏安特性角度去分析 ;给出了运算放大器在线测试的简单方法 。This article paper how to use the linearity of index multimeter's non- linear resistance grade.It states that you should analyze semiconductor PN junction's V- A characteristics when measuring semiconductor devices.It also gives out an easy way of testing operational amplifier on- line.This method accord with operational amplifier's high- differential gain and high- common mode rejection ratio's characteristics.

关 键 词：表笔端电压 运算放大器 两输入端 

分 类 号：TM938.12[电气工程—电力电子与电力传动]