HIGH RESISTANCE SCALING FROM 10 k(OHM) AND QHR STANDARDS USING A CRYOGENIC CURRENT COMPARATOR

Published

June 1, 2008

Author(s)

Randolph Elmquist, George R. Jones Jr., Brian J. Pritchard, Marcos E. Bierzychudek, Felipe L. Hernandez

Abstract

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.

Proceedings Title

CPEM-2008 Conference Digest

Report Number

32872

Conference Dates

June 8-15, 2008

Conference Location

Broomfield, CO, USA

Conference Title

2008 Conference on Precision Electromagnetic Measurements

Pub Type

Conferences

Download Paper

Local Download

Keywords

electrical resistance, quantized Hall resistance, cryogenic current comparator, high resistance

Citation

Elmquist, R. , Jones Jr., G. , Pritchard, B. , Bierzychudek, M. and Hernandez, F. (2008), 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 7, 2025)