Direct DC Voltages Comparison between two Programmable Josephson Voltage Standards at SCL

被引：0
|
作者：
Yang, S. [1 ]
Cular, S. [2 ,3 ]
Rufenacht, A. [2 ,3 ]
Burroughs, C. J. [2 ,3 ]
Dresselhaus, P. D. [2 ,3 ]
Benz, S. P. [2 ,3 ]
Ng, M. N. [1 ]
机构：
[1] Stand & Calibrat Lab, Hong Kong, Peoples R China
[2] NIST, Gaithersburg, MD 20899 USA
[3] NIST, Boulder, CO 80305 USA
来源：
2020 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM) | 2020年
关键词：
Programmable Josephson voltage standard; quantum voltage measurement; measurement uncertainty; Josephson voltage comparison;
D O I：
10.1109/cpem49742.2020.9191745
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Standards and Calibration Laboratory (SCL) setup in 2018 a liquid helium based programmable Josephson voltage standard (PJVS) developed by the National Institute of Standards and Technology (NIST). The system was validated by direct comparison with a NIST transportable PJVS system at 1.018 V, 4 V, 6 V, 8 V and 10 V. The difference between the systems was within 0.5 nV, with an expanded uncertainty of less than 2.2 nV (k = 2). In this paper, the setup and the results of the direct comparison method are presented.
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页数：2
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