Superconductivity in primary voltage metrology at INRiM

Andrea Sosso, Paolo Durandetto, Matteo Fretto, Vincenzo Lacquaniti

Abstract

Primary electrical Metrology is among the first and, to date, one of the most active and successful research field for superconducting devices. Voltage standards based on the Josephson effect are in use since few years after it discovery and have enormously reduced the uncertainty of DC voltage calibrations. INRIM the Italian National Metrology Institute has a long tradition in research on the application of superconductivity to electrical standards. This paper is an overview of main results and ongoing activities.

Keywords

Josephson effect, Metrology, Voltage standard, Electrical Instrumentation

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IMEKO-TC4-2014-317.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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