Direct comparison of the NRC hysteretic and the NRC watt balance Programmable Josephson Voltage Systems

Author

Wood, B.M. ; Robinson, I.A. ; Sanchez, C.

Author_Institution

Nat. Res. Council, Ottawa, ON, Canada

fYear

2010

fDate

13-18 June 2010

Firstpage

36

Lastpage

37

Abstract

At the National Research Council in Ottawa, the conventional Hysteretic Josephson Array Voltage System (HJVS) and the Programmable Josephson Array Voltage System (PJVS) associated with the watt balance experiment have been directly compared. This direct comparison of Josephson array systems uses an improved automated biasing technique for the hysteretic array. The comparison is being performed with different nanovoltmeters including the unique detector associated with the watt balance experiment. Noise, stability and linearity of the detectors are examined. Preliminary results indicate that the two Josephson systems, under optimized conditions, agree within (0.09 Ñ 0.54) nV at the nominal level of 1 V.

Keywords

superconducting junction devices; voltmeters; NRC hysteretic; NRC watt balance programmable josephson voltage systems; automated biasing technique; detector linearity; hysteretic Josephson array voltage system; nanovoltmeters; noise; stability; unique detector; voltage 1 V; Communication system control; Councils; Detectors; Electrical resistance measurement; Hysteresis; Laboratories; Operational amplifiers; Optical amplifiers; Stability; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2010 Conference on

Conference_Location

Daejeon

Print_ISBN

978-1-4244-6795-2

Type

conf

DOI

10.1109/CPEM.2010.5543333

Filename

5543333