Josephson array voltage calibration system; Operational use and verification

Journal Article · Fri Mar 31 23:00:00 EST 1989 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Instrumentation and Measurement; (USA)

DOI:https://doi.org/10.1109/19.192292· OSTI ID:5169692

Steiner, R L; Field, B F ^[1]

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1. National Inst. of Standards and Technology, Gaithersburg, MD (USA)

The authors describe a new Josephson array system which maintains the U.S. Legal Volt. This system is almost fully automated, operates with a typical precision of 0.009 {mu}V, and readily allows U.S. Legal Volt measurements weekly, or more frequently if desired. This system was compared to the previous volt maintenance system, and agreement was made to within 0.03 ppm. This verification is limited by uncertainties in the resistive divider instruments of the previous system.

• OSTI ID: 5169692
• Journal Information: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Instrumentation and Measurement; (USA), Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Instrumentation and Measurement; (USA) Vol. 38:2; ISSN IEIMA; ISSN 0018-9456
• Country of Publication: United States
• Language: English

Related Subjects

426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AUTOMATION
CALIBRATION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
JOSEPHSON JUNCTIONS
JUNCTIONS
MEASURING METHODS
OPERATION
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
VERIFICATION