摘要
介绍了电位器触点问题,热胀冷缩改变了接触位置,使电位器阻值发生变化,改变运放的放大倍率,产生了超差的现象。
Introduced the problem of potentiometer contact,thermal expansion changed the contact position,so that the potentiometer resistance changes,changing the enlargement ratio of Operational Amplifier,resulting in the phenomenon of ultra-poor.
作者
焦芬芬
王亚新
Jiao Fenfen;Wang Yaxin
出处
《计量与测试技术》
2019年第6期45-45,48,共2页
Metrology & Measurement Technique
关键词
电位器
倍率
故障
potentiometer
enlargement ratio
fault
