New form of digital wattmeter using a double dual-slope principle
- 7 July 1977
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 13 (14) , 406-407
- https://doi.org/10.1049/el:19770296
Abstract
A proposed a.c. digital watt/joule meter is described, which combines the principle of the well known dual-slope analogue-digital convertor with that of the sampling digital wattmeter to provide a system where multiplication, digitising, averaging and integration may be performed by using relatively few components.Keywords
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