Title :
A three-way, on-site comparison of the 10 V Josephson voltage standards of the PTB, the SP, and the BIPM
Author :
Reymann, Dominique ; Witt, T.J. ; Eklund, Gunnar ; Pajander, Hannu ; Nilsson, Håkan ; Behr, R. ; Funck, Torsten ; Müller, F.
Author_Institution :
Bur. Int. des Poids et Mesures, Sevres, France
fDate :
4/1/1999 12:00:00 AM
Abstract :
Comparisons of the 10 V Josephson array voltage standard (JAVS) of the Bureau International des Poids et Mesures (BIPM) were made at the Physikalisch-Technische Bundesansalt (PTB), Braunschweig, Germany with those of the PTB and of the Swedish National Testing and Research Institute (SP), Boras, Sweden, in January 1998. Although the results agree within an overall uncertainty of less than one part in 109 , a small but interesting dependence on microwave power was observed in the dc output of one array
Keywords :
Josephson effect; measurement standards; measurement uncertainty; superconducting arrays; voltage measurement; 10 V; BIPM; Bureau International des Poids et Mesures; JAVS; Josephson voltage standards; PTB; Physikalisch-Technische Bundesansalt; SP; Swedish National Testing and Research Institute; dc output; microwave power; overall uncertainty; Calibration; Diodes; Frequency; Metrology; Microwave antenna arrays; Switches; Testing; Uncertainty; Voltage; Voltmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
