HIGH RESISTANCE SCALING FROM 10 k(OHM) AND QHR STANDARDS USING A CRYOGENIC CURRENT COMPARATOR
Randolph Elmquist, George R. Jones Jr., Brian J. Pritchard, Marcos E. Bierzychudek, Felipe L. Hernandez
We describe a cryogenic current comparator (CCC) bridge for resistance scaling that provides improved measurement uncertainty over a range of resistance values from 100 k(Ω) to 1 G(Ω). This CCC is designed for high resistance scaling based directly on a quantized Hall resistance (QHR) standard as well as comparisons of resistance ratios of 1, 10 and 100. The QHR-to-decade-value winding ratio offset is chosen so as to approximately cancel the offsets produced by resistive decade windings.
CPEM-2008 Conference Digest
June 8-15, 2008
Broomfield, CO, USA
2008 Conference on Precision Electromagnetic Measurements
, Jones Jr., G.
, Pritchard, B.
, Bierzychudek, M.
and Hernandez, F.
HIGH RESISTANCE SCALING FROM 10 k(OHM) AND QHR STANDARDS USING A CRYOGENIC CURRENT COMPARATOR, CPEM-2008 Conference Digest, Broomfield, CO, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32872
(Accessed October 2, 2023)