DocumentCode
2282971
Title
A re-evaluation of NPL coaxial bridge systems used in the realization of the SI farad via the DC QHE
Author
Awan, S.A. ; Jones, R.G. ; Kibble, B.P.
Author_Institution
Centre for Electromagn. & Time Metrol., Nat. Phys. Lab., Teddington, UK
fYear
2002
fDate
16-21 June 2002
Firstpage
264
Lastpage
265
Abstract
A re-evaluation of the coaxial bridge systems used in the traceable measurements of NPL 10 pF primary capacitance standard via the DC, QHE is discussed. Comparisons are made between the previously reported measurement uncertainties and recent measurements on the 100:1 equal power, quadrature, and 10:1 coaxial bridge systems, in order to evaluate systematic errors.
Keywords
bridge instruments; capacitance measurement; measurement errors; measurement standards; measurement uncertainty; quantum Hall effect; units (measurement); 10 pF; DC quantum Hall effect; SI farad; coaxial bridge system; equal power bridge; measurement uncertainty; primary capacitance standard; quadrature bridge; systematic error; Bridge circuits; Capacitance; Coaxial components; Current measurement; Current transformers; Impedance; Measurement standards; Measurement uncertainty; Power measurement; Resistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location
Ottawa, Ontario, Canada
Print_ISBN
0-7803-7242-5
Type
conf
DOI
10.1109/CPEM.2002.1034823
Filename
1034823
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