Progress in Superconductivity
- Volume 9 Issue 1
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- Pages.56-61
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- 2007
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- 1229-4764(pISSN)
Uncertainty Evaluation of Josephson Voltage Standard in the level of $10^{-10}$
10의 -10승 수준에서 조셉슨 전압표준기 불확도 평가
- Kim, K.T. (Korea Research Institute of Standards and Science) ;
- Kim, M.S. (Korea Research Institute of Standards and Science) ;
- Chong, Y. (Korea Research Institute of Standards and Science) ;
- Kim, W.S. (Korea Research Institute of Standards and Science) ;
- Song, W. (Korea Research Institute of Standards and Science)
- Published : 2007.10.31
Abstract
The most recent improvement in the 10 V array system was carried out with focusing on noise reduction. We have evaluated the uncertainty of the 10 V Josephson array system after the improvement. The uncertainty evaluation of 10 V standard included a comparison with a programmable Josephson array system at 1 V. Every contribution to the measurement uncertainty was evaluated in the level of