Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Patent
1987-07-24
1989-01-03
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural inputs
324103R, 364483, G01R 2100, G01R 21133, G01R 2200
Patent
active
047959746
ABSTRACT:
A digital energy meter for providing energy measurements of nonsinusoidal waveforms. Voltage and related current components of a digitally sampled waveform are multiplied to form a product representative of instantaneous power. The products are summed or accumulated over a first time period, and the sums then accumulated over a second time period to form a second sum representative of total power over the second time period. An energy measurement is then obtained by an algorithm which requires only a simple division by a power of two.
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"A Wide-Range Digital Power/Energy Meter for Systems with Nonsinusoidal Waveforms", by Matouka, IEEE Trans. on Indus. Elect., vol. IE-29, #1, 2/82, pp. 18-31.
Burba Joseph C.
Landman Ronald G.
Spring Harold G.
Abolins Peter
Burns W.
Eisenzopf Reinhard J.
Ford Motor Company
Lippa Allan J.
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