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Improvements in the realization of the quantized-Hall resistance standard at OFMET

Conference ·
OSTI ID:125739
;  [1];  [2]
  1. Swiss Federal Office of Metrology, Wabern (Switzerland)
  2. Institute of Micro and Optoelectronic, Lausanne (Switzerland)
+ Show Author Affiliations

A measurement system based on a cryogenic current comparator has been developed at the Swiss Federal Office of Metrology (OFMET) to maintain the electrical unit of resistance. Standard resistors in the range of 1 {Omega} to 10 k{Omega} can be measured against the quantized Hall resistance with a precision on the order of one part in 10{sup 9} (ppb). This recently completed system improves the measurement accuracy of OFMET in this range by one order of magnitude.

OSTI ID:
125739
Report Number(s):
CONF-940603--
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ACCURACY
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRONIC CIRCUITS
HALL EFFECT
MEASURING INSTRUMENTS
MEASURING METHODS