An Initial Reproduction of SI Capacitance Unit From a New Calculable Capacitor at NIM
An Initial Reproduction of SI Capacitance Unit From a New Calculable Capacitor at NIM
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DOI：
10.1109/tim.2015.2399012
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发表时间：
2015-02
影响因子：
5.6
通讯作者：
Zuliang Lu;Lu Huang;Yan Yang;Jianting Zhao;J. Qian;W. Lu;Zhongyou Liu;Zhonghua Zhang;Xiuying Liu;Jianbo Wang;Wei Wang;Yunfeng Lu;Q. He
中科院分区：
文献类型：
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作者：
Zuliang Lu;Lu Huang;Yan Yang;Jianting Zhao;J. Qian;W. Lu;Zhongyou Liu;Zhonghua Zhang;Xiuying Liu;Jianbo Wang;Wei Wang;Yunfeng Lu;Q. He
一种新型的可计算电容器最初是在中国国家计量研究所与澳大利亚国家测量研究所合作建造的。该电容器在1pF时实现了SI单位的电容，其不确定度为20个分量。采用了一种简化的操作方法，避免了复杂的小值电容器替代测量过程。详细介绍了安装和调整过程的新方面，以及实验结果和初步不确定度估计。
A new type of calculable capacitor was initially built at the National Institute of Metrology, China, in cooperation with the National Measurement Institute, Australia. The capacitor realized the SI unit of capacitance at 1 pF, with an uncertainty of 20 parts in 109. A simplified operational approach was used that avoids the complex substitution measuring process with small-value capacitors. The details of novel aspects of the installation and adjustment processes are presented, together with the experimental results and an initial uncertainty estimation.