万用表在电路测试中的几个应用技巧

Some Avometer Application Skills in Circuit Testing

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.