电压基准
Technological innovation for the 3GH_z RF Voltage Primary Standard
3GH_z射频电压基准技术改造
10V Josephson Junction Array Voltage Primary Standard
10V约瑟夫森结阵电压基准
Josephson voltage primary standard and check the stability of DC reference standard
约瑟夫森电压基准与固态电压标准的稳定性考核
The result of technological innovation for 3GHz RF Voltage primary standard is introduced in this paper.
本文介绍了3GHz射频电压基准技术改造的结果。
Based on the 1V Josephson junction array voltage standard,the National Institute of Metrology (NIM)set up the 1V Josephson junction array voltage primary standard at the end of 1999.The calibrated voltage is adjustable continuously in the range from 0\^1V to 10V.The combined uncertainty calibrating the 10V output of the solid voltage standard is 5\^4×10 -9 (1σ).
在 1V约瑟夫森结阵电压基准的基础上 ,10 V约瑟夫森结阵电压基准于 1999年底在中国计量科学研究院量子部电压实验室建立。 其校准电压在 0 .1V~ 10 V范围内连续可调。
The Josephson voltage primary standard had been used since January 1st, 2006. The value of voltage primary standard changed to 0.58 μV, which would influence the value of DC reference standard because of the high accuracy (the stability is 2E-6/a).
从2006年1月1日起,国家正式启用约瑟夫森电压基准,国家电压基准改值的大小为0.58μV。 溯源到固态电压标准,由于其准确度等级高(年稳定性为2E-6),国家电压基准的改值将对其产生一定的影响。 |