Title :
AC-DC transfer comparator for the calibration of thermal voltage converters against Josephson alternating voltage standards
Author :
Budovsky, Ilya ; Sasaki, Hitoshi ; Coogan, Peter
Author_Institution :
Nat. Meas. Lab., CSIRO Telecommun. & Ind. Phys., Lindfield, NSW, Australia
fDate :
4/1/2003 12:00:00 AM
Abstract :
This paper describes a new measurement system for the comparison of alternating voltage standards based on the Josephson effect with thermal voltage converters. The target is to achieve an uncertainty of 0.1 μV/V at frequencies up to 10 kHz. The present work achieves an uncertainty of 0.2 μV/V up to 2 kHz.
Keywords :
Josephson effect; calibration; comparators (circuits); convertors; measurement standards; measurement uncertainty; voltage measurement; 2 kHz; AC-DC transfer comparator; Josephson alternating voltage standard; calibration; measurement uncertainty; thermal voltage converter; AC generators; Analog-digital conversion; Calibration; DC generators; Digital-analog conversion; Josephson effect; Measurement standards; Switches; Uncertainty; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.811671
