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US 6,747,459 B2Granted
Electric arc monitoring systems
AssigneeHendry Mechanical Works
InventorsMichael T. Parker, Howard M. Ham, Jr., James J. Keenan, Luc Pierre Benoit
Life of this patent
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AssigneeHendry Mechanical Works
InventorsMichael T. Parker, Howard M. Ham, Jr., James J. Keenan, Luc Pierre Benoit
Estimating the term…
Electric arc monitoring is effected by exploiting the discovery that electric arcs are fractal phenomena in that all essential information that signifies an “arc” is contained in each fractal subset. The fractal subsets are logarithmically distributed over the arc spectrum. Monitoring of arcs is most advantageously effected on a fractal subset of low logarithmic order where the amplitude is higher pursuant to the 1/f characteristic of electric arcs, where cross-induction among neighboring circuits is lower, and where travel between the arc and the arc signature pickup is longer that at the high frequency customary for electric arc detection. Fractal subset information reduces the danger of false alarms. Arc signature portions may be processed in out of phase paths or treated as modulated carriers for monitoring.
In a method of monitoring an electric arc having an arc signature extending over a wideband range of frequencies of a chaotic nature in a monitored circuit, the improvement comprising in combination:
An apparatus for monitoring an electric arc having an arc signature typified by a wideband range of frequencies of a chaotic nature in a monitored circuit, the improvement comprising in combination:
An apparatus for monitoring an electric arc having an arc signature typified by a wideband range of frequencies of a chaotic nature in a monitored circuit, the improvement comprising in combination:
Dependencies are inferred from the claim text.