Title :
Comparison of the quantized Hall resistance and ohm NRC
Author :
Wood, Barry M. ; Inglis, A.D.
Author_Institution :
Nat. Res. Council of Canada, Ottawa, Ont., Canada
fDate :
4/1/1989 12:00:00 AM
Abstract :
A report is given of the progress towards the establishment of a quantized Hall resistance (QHR) measurement system suitable for maintaining the NRC (National Research Center of Canada) representation of the ohm. A system using a cryogenic current comparator bridge is described and compared to the previously reported 15 T, 20-mK potentiometric system. General problems concerning the use of the quantized Hall resistance to realize a representation of the ohm are discussed
Keywords :
bridge circuits; comparators (circuits); electric resistance measurement; low-temperature techniques; quantum Hall effect; units (measurement); NRC; cryogenic current comparator bridge; ohm; quantized Hall resistance; Bridges; Coils; Cryogenics; Electrical resistance measurement; Lead; Magnetic flux; SQUIDs; Stability; Superconducting device noise; Superconducting magnets;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
