Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1995-03-08
1996-06-18
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
324 7621, 324 7638, 324 7658, 364485, 361 76, G01R 2316
Patent
active
055281346
ABSTRACT:
A harmonic analyzer using a short sampling window eliminates truncation artifacts in the sampling of an AC power waveform by equating the length of the sample period to a period of the sampled waveform. The period of the AC power waveform is estimated from the waveform and used to produce a set of "resampled" points evenly spaced within that period as estimated from the sampled. By performing a spectrum analysis on the resampled points, artifacts at the harmonic intervals are reduced to zero.
REFERENCES:
patent: 4504786 (1985-03-01), Slaughter
patent: 4646004 (1987-02-01), Brandt
Davis Gerald W.
Gasperi Michael L.
Allen-Bradley Company Inc.
Baxter Keith M.
Horn John J.
Miller John M.
Solis Jose M.
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