摘要
本文介绍了比例偏差值达到(0.2～1)×10-6、测量不确定度达到(1～5)×10-7的直流大电流比例标准自校系统。介绍了用自平衡比较仪通过自校、加法、比较和乘法等校准线路实现直流大电流量值的绝对溯源。
Introduced the large direct current proportion standard self-calibration system, which the error ratio is （0.2-1）×10^-6 and the measurement uncertainty is （1-5）×10^-7. It can be obtained the trace to the source of large direct current with self-balancing DC comparator through self-calibration circuit, addition circuit, compare circuit and multiplication circuit etc.
出处
《电测与仪表》
北大核心
2006年第8期40-43,共4页
Electrical Measurement & Instrumentation
关键词
直流大电流
自平衡比较仪
自校
large direct current
self-balancing comparator
self-celabration
