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Quantum Hall Resistance Traceability for the NIST-4 Watt Balance



Dean G. Jarrett, Randolph Elmquist, Marlin E. Kraft, George R. Jones Jr., Shamith Payagala, Frank Seifert, Stephan Schlamminger, Darine El Haddad


Scaling from the quantum Hall resistance to 100 Ω standard resistors used by the NIST-4 Watt Balance involves multiple resistance standards and bridges to provide the lowest possible uncertainty. Described here is the infrastructure and procedures developed to support these measurements at better than 20 x 10^-9 standard uncertainty levels.
Conference Dates
July 10-15, 2016
Conference Location
Ottawa, CA
Conference Title
Conference on Precision Electromagnetic Measurements (CPEM) 2016


cryogenic current comparator, direct current comparator, quantum Hall resistance, standard resistor, watt balance


Jarrett, D. , Elmquist, R. , Kraft, M. , Jones Jr., G. , Payagala, S. , Seifert, F. , Schlamminger, S. and El Haddad, D. (2016), Quantum Hall Resistance Traceability for the NIST-4 Watt Balance, Conference on Precision Electromagnetic Measurements (CPEM) 2016, Ottawa, CA, [online], (Accessed June 22, 2024)


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Created July 10, 2016, Updated April 4, 2022