计算机与数字工程2019，Vol.47Issue(1)：1-4,23,5.DOI:10.3969/j.issn.1672-9722.2019.01.001
1mV~10mV直流电压的高准确度校准∗
High Accuracy Method for 1mV~10mV DCV Calibration
翟玉卫 1程晓辉 1丁立强1
作者信息
- 1. 中国电子科技集团公司第十三研究所 石家庄 050051
- 折叠
摘要
Abstract
In order to resolve the problem of 1mV~10mV DCV retrace,a calibration method which uses a constant current source,a standard sample resistor and a DCV voltage meter is proposed. The calibration was based on ohm's law,a 5720A is used as the current source,the 742A are used as sample resistors,a 8508A is used as the voltage meter,the way to eliminate the effect of influence quantities is given. A 8508A is calibrated,the uncertainties on 1mV and 10mV are evaluated,according to the compari?son with results from voltage divider method and uncertainties transfer comparison validation,the sample resistor method is proved to be feasible and accurate and can fulfill the calibration requirement of 1mV~10mV DCV.关键词
直流电压/校准/取样电阻/测量不确定度Key words
Key Words DCV/calibration/sample resistor/measurement uncertainty分类
信息技术与安全科学引用本文复制引用
翟玉卫,程晓辉,丁立强..1mV~10mV直流电压的高准确度校准∗[J].计算机与数字工程,2019,47(1):1-4,23,5.
