Title :
Precise null balancing technique for 10-V Josephson junction array voltage standard system
Author :
Yoshida, H. ; Kozakai, T. ; Murayama, Y.
Author_Institution :
Advantest Labs. Ltd., Miyagi, Japan
Abstract :
Precise null balancing technique has developed for 10-V Josephson junction array voltage standard system (10-V JJAVS). New technique is achieved by (1) precise capturing of the desired Josephson step, (2) millimeter-wave adjustment for making strict null balancing, (3) use of a stable chopper-type digital voltmeter (DVM) as a null detector.
Keywords :
measurement standards; superconducting junction devices; voltage measurement; 10 V; Josephson junction array voltage standard; Josephson step; digital voltmeter; millimeter-wave adjustment; null balancing; null detector; Circuits; Detectors; Frequency; Josephson junctions; Laboratories; Millimeter wave technology; Noise reduction; Stability; Switches; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547339
