Digital Wattmeter Using a Sampling Method
- 1 January 1974
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 23 (4) , 337-341
- https://doi.org/10.1109/tim.1974.4314307
Abstract
Average electric power can be measured by a system that samples voltages and currents at predetermined intervals. The sampled signals are digitized and the result is computed by numerical integration. The response of the system agrees with that of a standard electrodynamic wattmeter within 0.02 percent from dc to 1 kHz, with the possible exception of zero power factor measurements. Measurements up to 5 kHz can be made with somewhat greater uncertainties.Keywords
This publication has 2 references indexed in Scilit:
- An Electronic Multiplier for Accurate Power MeasurementsIEEE Transactions on Instrumentation and Measurement, 1968
- A System for Accurate Direct and Alternating Voltage MeasurementsIEEE Transactions on Instrumentation and Measurement, 1965