Title :
A cheaper, simpler quantized Hall resistance standard
Author_Institution :
Inst. for Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada
fDate :
4/1/1999 12:00:00 AM
Abstract :
We have developed an accurate quantized Hall resistance (QHR) standard which is both cheaper and simpler to operate than most of those previously realized. In this paper, we outline the characteristics of the samples used, describe and discuss the design of the dewar and magnet system, and present field sweep data and accurate measurements carried out using a room temperature dc current comparator bridge
Keywords :
electric resistance measurement; measurement standards; quantum Hall effect; DC current comparator bridge; dewar; field sweep measurement; magnet system; quantized Hall resistance standard; Bridge circuits; Cryogenics; Current measurement; Electrical resistance measurement; Helium; Laboratories; Measurement standards; Military standards; Standards development; Superconducting magnets;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
