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Publication Citation: 100 mV ac-dc Transfer Standard measurements with a Pulse-driven AC Josephson Voltage Standard

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Author(s): Samuel P. Benz; Charles J. Burroughs; Paul D. Dresselhaus; Thomas E. Lipe; Joseph R. Kinard Jr.;
Title: 100 mV ac-dc Transfer Standard measurements with a Pulse-driven AC Josephson Voltage Standard
Published: July 14, 2006
Abstract: In order to improve the low-voltage calibration service at NIST we have constructed an ac Josephson voltage standard system with a maximum rms output voltage of 100 mV. Using this system we synthesized sinewaves of various audio frequencies and measured ac-dc differences on the 220 mV range of a commercial thermal transfer standard. By modifying the output resistance of the low-pass-filtered transmission-line we were able to extend our measurements frequency from a few kilohertz up to 100 kHz. Our data stand within the uncertainty budget of ac-dc difference calibrations made of this transfer standard using conventional techniques. At the conference we will present additional results using new Josephson circuits capable of reaching 200 mV.
Conference: Conference on Precision Electromagnetic Measurements
Proceedings: Conference on Precision Electromagnetic Measurements Digest
Pages: pp. 678 - 679
Location: Torino, IT
Dates: July 9-14, 2006
Keywords: Digital-analog conversion;Josephson arrays;Quantization;Signal synthesis;Standards;Superconductor-normal-superconductor devices;Voltage standards
Research Areas: Quantum Electrical Measurements
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