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Possible direct measurement of standard cells with a Josephson voltage standard

A Katkov, J Niemeyer and R Behr

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SHORT COMMUNICATION

An analysis was undertaken of the dynamic parameters of standard cells in a circuit for the direct measurement of a standard cell with a Josephson junction array voltage standard. The parameters of the models of a null detector and a standard cell were determined experimentally. It is shown that, according to these parameters, a standard cell can be measured directly with a voltage standard, with an uncertainty at the nanovolt level.


PACS

84.30.Sk Pulse and digital circuits

85.25.Am Superconducting device characterization, design, and modeling

06.20.Dk Measurement and error theory

84.37.+q Electric variable measurements (including voltage, current, resistance, capacitance, inductance, impedance, and admittance, etc.)

85.25.Cp Josephson devices

06.20.F- Units and standards

Subjects

Superconductivity

Electronics and devices

Instrumentation and measurement

Dates

Issue 5 (October 1999)



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