Precision AC–DC Transfer Measurements With a Josephson Waveform Synthesizer and a Buffer Amplifier

Author

Séron, Olivier ; Djordjevic, Sophie ; Budovsky, Ilya ; Hagen, Thomas ; Behr, Ralf ; Palafox, Luis

Author_Institution

Lab. Nat. de Metrol. et d´´Essais (LNE), Trappes, France

Volume

61

Issue

1

fYear

2012

Firstpage

198

Lastpage

204

Abstract

Measurements of the ac-dc difference of a thermal converter have been performed using a Josephson waveform synthesizer and a precision buffer amplifier at frequencies from 10 Hz to 4 kHz, showing agreement with conventional standards of better than 1 μV/V up to 1 kHz. In addition, a method of finding the operating parameters of the programmable Josephson array that corresponds to minimal uncertainty is discussed.

Keywords

AC-DC power convertors; amplifiers; buffer circuits; signal synthesis; superconducting arrays; superconducting junction devices; voltage measurement; waveform generators; AC-DC difference measurement; Josephson waveform synthesizer; buffer amplifier; frequency 10 Hz to 4 kHz; operating parameter; precision AC-DC transfer measurement; programmable Josephson array; thermal converter; Arrays; Current measurement; Frequency measurement; Radio frequency; Transient analysis; Uncertainty; Voltage measurement; Josephson array; signal synthesis; thermal converter (TC); voltage measurement;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2011.2157429

Filename

5929558