DocumentCode
1194819
Title
NPL Calculable Capacitor
Author
Rayner, G.H.
Volume
21
Issue
4
fYear
1972
Firstpage
361
Lastpage
365
Abstract
The NPL calculable cross capacitor is designed to provide a standard of the highest accuracy. It has a vertical axis and the length is determined by central guard tubes. The length is altered by axial displacement of the lower tube and the change is measured interferometrically. This paper describes the construction and performance of the capacitor and records the results of the initial measurements; the uncertainty of these is of the order of 10-7.
Keywords
Capacitance; Capacitors; Displacement measurement; Electrodes; Inductors; Laboratories; Length measurement; Measurement uncertainty; Probability; Stability;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.1972.4314044
Filename
4314044
Link To Document