Title :
Improved resistance comparison system at Gakushuin University and a new determination of the quantized Hall resistance in terms of the NML OHM
Author :
Nagata, M. ; Nagashima, N. ; Hayashi, K. ; Kawaji, S. ; Ricketts, B.W. ; Small, G.W.
Author_Institution :
Dept. of Phys., Gakushuin Univ., Tokyo, Japan
fDate :
June 27 1994-July 1 1994
Abstract :
Improvements to the cryogenic current comparator and other aspects of the resistance measurement system at Gakushuin University have led to a new determination of the quantized Hall resistance in terms of /spl Omega//sub NML/ with reduced uncertainties. This determination leads to the result R/sub H/(GU 1992)=(1+0.008(33)/spl times/10/sup -6/)R/sub K/.<>
Keywords :
SQUIDs; bridge circuits; comparators (circuits); electric resistance measurement; measurement standards; quantum Hall effect; Gakushuin University; NML OHM; cryogenic current comparator; electric resistance measurement; quantized Hall resistance; resistance comparison; resistance measurement; Atmospheric measurements; Bridges; Cryogenics; Current measurement; Detectors; Electrical resistance measurement; Laboratories; Physics; Potentiometers; Resistors;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333264
