Title :
Josephson array voltage calibration system: operational use and verification
Author :
Steiner, Richard L. ; Field, Bruce F.
Author_Institution :
NBS, Gaithersburg, MD, USA
fDate :
4/1/1989 12:00:00 AM
Abstract :
A Josephson array system that maintains the US legal volt is described. This system is almost fully automated, operates with a typical precision of 0.009 μV, and readily allows US legal volt measurements weekly, or more frequently if desired. This system was compared to the previous volt-maintenance system, and agreement was found to within 0.03 p.p.m. This verification is limited by uncertainties in the resistive divider instruments of the previous system
Keywords :
Josephson effect; calibration; units (measurement); voltage measurement; Josephson array system; US legal volt measurements; resistive divider instruments; verification; volt-maintenance; voltage calibration; Calibration; Circuits; Frequency; Gunn devices; Instruments; Law; Legal factors; Millimeter wave measurements; Semiconductor device measurement; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
