摘要
本文介绍了在ＵＪ５２多量限电位差计中用ＬＭ３９９代替锌汞电池的电路和方法。取得了较好的效果。
This paper precents the circuit and method of the replacement of zinc-mercury couple by LM399 in UT52 multilimit electric potential difference meter with better results.
出处
《大学物理实验》
1994年第4期38-39,共2页
Physical Experiment of College
关键词
电位差计
精密电压基准
锌汞电池
恒流源
electric potential difference meter
standard of precision voltage
zinc-mercury couple
constant-current source
