Accuracy of a cryocooler-based programmable Josephson voltage standard

被引：11
|
作者：
Behr, R [1 ]
Schubert, M
May, T
机构：
[1] PTB, D-38116 Braunschweig, Germany
[2] IPHT, D-07702 Jena, Germany
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2004年 / 53卷 / 03期
关键词：
compact microwave source; comparison; cryocooler; superconductor-insulator-normal metal-insulator-superconductor (SINIS) Josephson arrays; voltage standard;
D O I：
10.1109/TIM.2004.827068
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：
A cryocooler-based programmable Josephson array voltage standard (JAVS) for 4-K operation and a very compact microwave source are described. Both components are crucial for future mobile voltage standards. A direct comparison between two programmable JAVS using these components was performed at 1V in order to test whether these systems are suitable for metrological application at the highest level of precision. The results of the comparison show that the new components are suitable for mobile JAVS with an uncertainty of less than 1 x 10(-9).
引用
收藏
页码：822 / 825
页数：4
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