参考级直流标准电压源自动校准系统  

Automatic Calibration System of Reference Level DC Standard Voltage Source

作　　者：李晶晶[1] 王乾娟 孙智 金海彬[1] 罗春妹[1] 黄文钰 LI Jing-jing;WANG Qian-juan;SUN Zhi;JIN Hai-bin;LUO Chun-mei;HUANG Wen-yu(Beijing Oriental Institute of Measurement and Test,Beijing 100086,China)

机构地区：[1]北京东方计量测试研究所,北京100086

出　　处：《计量学报》2020年第3期306-310,共5页Acta Metrologica Sinica

摘　　要：针对参考级直流标准电压源范围宽、指标高,校准流程复杂的问题,研制了一套基于程控低热电势开关矩阵的参考级直流标准电压源自动校准系统。介绍了系统的组成、低热电势开关矩阵的研制、参考级直流标准电压源的校准方法,并对系统进行了不确定度评估,经评定直流电压100 V不确定度达到2×10-6(k=2)。To calibrate high precision voltage source and simplify its calibration process,based on programmed low thermal potential switch matrix,an automatic calibration system for reference DC standard voltage source was developed.The composition of the system,the development of the low thermal potential switch matrix and the calibration method of the reference level DC standard voltage source were introduced.The uncertainty of the calibration system was also evaluated with DC voltage 100 V reaching 2×10-6(k=2).

关 键 词：计量学 直流电压源 开关矩阵 自动校准系统 不确定度 

分 类 号：TB971[一般工业技术—计量学]