DocumentCode
2482729
Title
A power comparator with high accuracy simple and inexpensive
Author
Laiz, H. ; Garcia, R.
Author_Institution
Dept. de Fisica y Metrologia, INTI, San Martin, Argentina
fYear
1996
fDate
17-21 June 1996
Firstpage
560
Lastpage
561
Abstract
This paper describes a thermal wattmeter that measures ac power within 10 ppm (1 /spl sigma/) 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 standards; power measurement; ac power; current transformer; dc standards; power comparator; power frequencies; thermal converter; thermal wattmeter; total uncertainty; voltage transformer; Current transformers; Frequency; Instruments; Measurement standards; Power measurement; Switches; Uncertainty; Voltage control; Voltage transformers; Wattmeters;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location
Braunschweig, Germany
Print_ISBN
0-7803-3376-4
Type
conf
DOI
10.1109/CPEM.1996.547348
Filename
547348
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