DocumentCode
1490832
Title
Digital ´bridge´ for comparison of AC-DC transfer instruments
Author
Knight, R.B.D. ; Legg, D.J. ; Martin, P.
Author_Institution
NPL, Teddington, UK
Volume
138
Issue
3
fYear
1991
fDate
5/1/1991 12:00:00 AM
Firstpage
169
Lastpage
175
Abstract
A system for automatic AC-DC transfer and transfer difference measurement is described. The combination of high resolution digitisers with curve-fitting methods of analysis yields measurement uncertainties as small as can be obtained by the most painstaking manual methods. A model relating the input and output of thermal convertors is used to evaluate the range over which a linear approximation may be used.
Keywords
bridge instruments; computerised instrumentation; convertors; digital instrumentation; signal processing equipment; AC-DC transfer instruments; calibration; curve-fitting methods; high resolution digitisers; linear approximation; measurement uncertainties; thermal convertors; transfer difference measurement;
fLanguage
English
Journal_Title
Science, Measurement and Technology, IEE Proceedings A
Publisher
iet
ISSN
0960-7641
Type
jour
Filename
75434
Link To Document