Title :
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
fDate :
4/1/2001 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
