DocumentCode
1455850
Title
A power comparator with high accuracy: simple and inexpensive
Author
Laiz, Héctor ; García, Ricardo
Author_Institution
Nat. Inst. of Ind. Technol., Buenos Aires, Argentina
Volume
46
Issue
2
fYear
1997
fDate
4/1/1997 12:00:00 AM
Firstpage
420
Lastpage
422
Abstract
This paper describes a thermal wattmeter that measures ac power within 10×10-5 (1 σ) at power frequencies. The instrument relates ac power to dc standards. Its main achievement is that its few components can be separately evaluated and by this means its total uncertainty estimated
Keywords
comparators (circuits); measurement errors; power measurement; wattmeters; ac power measurement; power comparator; power frequencies; thermal wattmeter; total uncertainty; Current transformers; Electrical resistance measurement; Instruments; Laboratories; Magnetic flux; Switches; Temperature; Voltage control; Voltage transformers; Wattmeters;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.571871
Filename
571871
Link To Document