Power meter

Details Power meter Power meter

2005-12-08

2008-11-04

Barlow, John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S057000

Reexamination Certificate

active

07447603

ABSTRACT:
The computational resources of a digital power meter can be reduced by utilizing an interrupt requested in anticipation of interrupt latency to perform real-time tasks, an approximation of a root mean square load current at an earlier time to compensate for a phase shift between the load current and the current transducer output, and an amplitude that is neither zero nor maximum to distinguish the cycles of a harmonically distorted waveform.

REFERENCES:
patent: 6044430 (2000-03-01), MacDonald
patent: 6615147 (2003-09-01), Jonker et al.
patent: 1531334 (2005-05-01), None

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