Comparison of the Josephson voltage standards of VNIIM and PTB

Author

Behr, Ralf ; Niemeyer, Jürgen ; Katkov, Alexander S.

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

Volume

50

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

203

Lastpage

205

Abstract

Comparisons of the 1 V Josephson array voltage standard (JAVS) of the “D.I. Mendeleyev Institute for Metrology” (VNIIM), Russia, with that of the Physikalisch-Technische Bundesanstalt (PTB), Germany, were carried out in St. Petersburg in June 1999. The results of the direct comparison agree within an overall standard uncertainty of less than 1 nV. The results also show that direct comparisons are useful for detecting voltage offsets of a few parts in 10¹⁰. The reason for a small voltage offset in an SIS array was investigated at zero voltage level

Keywords

Josephson effect; measurement standards; measurement uncertainty; voltage measurement; 1 V; 1 nV offset; Germany; Josephson voltage standards; June 1999; Mendeleyev Institute for Metrology; PTB; Physikalisch-Technische Bundesanstalt; Russia; SIS array; St. Petersburg; VNIIM; standard uncertainty; voltage offset; zero voltage level; Calibration; Circuits; Detectors; Frequency; Lead; Measurement standards; Signal generators; Switches; Uncertainty; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.918102

Filename

918102