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Comparison of Two AC Programmable Josephson Voltage Standards Using Sampling Methods



Alain Rufenacht, Charles J. Burroughs, Samuel Benz


We have performed a variety of comparison measurements between ac waveforms generated by two independent ac programmable Josephson voltage standard (ACPJVS) systems. The objective of these experiments was to demonstrate the effectiveness of using a sampling digital voltmeter to measure small differences between Josephson waveforms. The low uncertainties that we obtained confirm the feasibility of using this sampling method for high accuracy comparisons between ACPJVS waveforms and signals from other sources.
Review of Scientific Instruments


Digital-analog conversion, Josephson arrays, Power Measurement, Quantization, Signal synthesis, Standards, Superconductor-normal-superconductor devices, Voltage measurement


Rufenacht, A. , Burroughs, C. and Benz, S. (2008), Comparison of Two AC Programmable Josephson Voltage Standards Using Sampling Methods, Review of Scientific Instruments, [online], (Accessed July 18, 2024)


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Created April 20, 2008, Updated October 12, 2021