Leakage current or resistance measurement method, and...

Details Leakage current or resistance measurement method, and... Leakage current or resistance measurement method, and...

2006-09-19

2006-09-19

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S065000, C324S510000, C324S551000

Reexamination Certificate

active

07110895

ABSTRACT:
A method for measuring the resistance component current included in the leakage current is provided. In a monitoring apparatus and system for measurement the signal waveform of at least one AC cycle is sampled. The resistance component leakage current is measured by dividing the average of integrated value of the instantaneous leakage current values and the instantaneous voltage values by the square root of average of squared instantaneous voltage values. In addition, a voltage signal of the target measurement circuit is obtained the waveform of the leakage current signal and the voltage signal for one cycle is sampled and stored; the leakage current signal and the voltage signal are expanded to N-th higher harmonic wave component respectively, and the resistance component that relates to the leakage current is calculated.

REFERENCES:
patent: 3732490 (1973-05-01), Bolka
patent: 6072708 (2000-06-01), Fischer
patent: 6327124 (2001-12-01), Fearing et al.
patent: 6421618 (2002-07-01), Kliman et al.
patent: 6593751 (2003-07-01), Takahashi

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