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.

引用

页数：2

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