DocumentCode
1203815
Title
High-Accuracy Josephson Potentiometer
Author
Endo, Tadashi ; Koyanagi, Masao ; Nakamura, Akira
Volume
32
Issue
1
fYear
1983
fDate
3/1/1983 12:00:00 AM
Firstpage
267
Lastpage
271
Abstract
A potentiometer with the extremely small relative uncertainty of a few parts in 109 has been developed by utilizing the property that a Josephson junction generates a precise voltage that is variable with frequency and step number. The evaluated total uncertainty is 2.5 × 10-9V for measurements at the 1-V level. This small uncertainty is attributed to the generation of a higher than normal Josephson voltage, that is, on the order of 100 mV.
Keywords
Circuits; Frequency; Josephson junctions; Laboratories; Measurement standards; Potentiometers; Standards development; Stripline; Superconducting films; Voltage;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.1983.4315056
Filename
4315056
Link To Document