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Yi-hua Tang


The majority of Josephson Voltage Standard (JVS) intercomparisons have been performed by using Zener voltage transfer standards and a protocol based on the Measurement Assurance Program (MAP) with uncertainties in the range of a few parts in 10^8 at 10 V that are limited by the Zener characteristics. In order to improve the uncertainty of the comparison, protocols using a compact Josephson voltage standard (CJVS) as the transfer standard have been developed. The uncertainty using the CJVS in the comparison can be in the range of a few parts in 10^9 at 10 V. The array to array direct comparison using the conventional JVS or programmable JVS (PJVS) can further improve the uncertainty of the comparison to a few parts in 10^10.
Proceedings Title
Proc. VII Semetro
Conference Dates
September 12-15, 2007
Conference Location
Belo Horizonte, BR


intercomparison, Josephson voltage standard, Measurement Assurance Program (MAP), programmable Josephson junction array, uncertainty


Tang, Y. (2007), JOSEPHSON VOLTAGE STANDARD INTERCOMPARISON, Proc. VII Semetro, Belo Horizonte, BR, [online], (Accessed July 19, 2024)


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Created September 1, 2007, Updated January 27, 2020