Accuracy of a cryocooler-based programmable Josephson Voltage standard

Author

Behr, Ralf ; Schubert, Marco ; May, Torsten

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

Volume

53

Issue

3

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

822

Lastpage

825

Abstract

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 1 V 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 × 10^-9.

Keywords

Josephson effect; measurement standards; superconducting microwave devices; superconductor-insulator-superconductor devices; superconductor-normal-superconductor devices; voltage measurement; 1 V; 4-K operation; Josephson array voltage standard; SINIS Josephson arrays; compact microwave source; cryocooler; metrological application; mobile voltage standards; programmable Josephson voltage standard; superconductor-insulator-normal metal-insulator-superconductor; Electromagnetic heating; Heat transfer; Helium; Integrated circuit technology; MMICs; Microwave antenna arrays; Superconducting devices; Superconducting microwave devices; Temperature; Voltage measurement; Compact microwave source; Josephson arrays; SINIS; comparison; cryocooler; superconductor-insulator-normal metal-insulator-superconductor; voltage standard;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.827068

Filename

1299147