Frequency Range Extension of the AC Quantum Voltmeter

R. Behr, A. Katkov,J. Lee,S. Bauer,O. Kieler,L. Palafox

2018 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM 2018)（2018）

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摘要

A recently introduced coherent sub-sampling technique has been implemented to extend the frequency range of our AC quantum voltmeter up to 100 kHz. The measurement results are compared with differential sampling for frequencies up to 10 kHz. Above 3 kHz all preliminary results show a deviation from nominal values which increases quadratic with frequency. Possible error sources and corrections are discussed.

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关键词

AC voltage measurement, programmable Josephson system, signal synthesis, standards

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