Wideband wattmeter based on RMS voltage measurements

Wideband wattmeter based on RMS voltage measurements

A wideband wattmeter for measuring active power over a frequency range of dc to 500 kHz is described. The wattmeter is based on the three-voltmeter method in which three rms voltage measurements are used to calculate power. The wattmeter active power uncertainty is estimated to be within 0.03% from...

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Veröffentlicht in:IEEE transactions on instrumentation and measurement 1997-08, Vol.46 (4), p.781-783
Hauptverfasser: Waltrip, B.C., Oldham, N.M.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Broadband amplifiers
Circuit testing
Electronics
Exact sciences and technology
Frequency
Power measurement
Reactive power
Resistors
Testing, measurement, noise and reliability
Voltage measurement
Voltmeters
Wattmeters
Wideband
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Zusammenfassung:A wideband wattmeter for measuring active power over a frequency range of dc to 500 kHz is described. The wattmeter is based on the three-voltmeter method in which three rms voltage measurements are used to calculate power. The wattmeter active power uncertainty is estimated to be within 0.03% from dc to 20 kHz and within 1.5% to 500 kHz.
ISSN:0018-9456
1557-9662
DOI:10.1109/19.650772