Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Patent
1995-12-08
1998-05-12
Karlsen, Ernest F.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
324534, 324535, 324642, 324644, G01R 3111
Patent
active
057511497
ABSTRACT:
An apparatus and method is disclosed for the location of faults occurring within transmission systems. The disclosed apparatus and method allows a user to adjust the center frequency of a pulse output by a standard narrow bandwidth time domain reflectometer, without altering the bandwidth of the output pulse. As a result, the detection of faults occurring at a wide range of frequencies is enabled--while the cost associated with widening the bandwidth of the transmitted pulse is not incurred. Moreover, due to the narrower bandwidth, efficient fault detection is achieved as well for high frequency systems as for low frequency systems.
REFERENCES:
patent: 3470331 (1969-09-01), Barash
patent: 3600674 (1971-08-01), Roberts
patent: 3753086 (1973-08-01), Shoemaker
patent: 4404514 (1983-09-01), Reichert
patent: 5144250 (1992-09-01), Little
Oberg Arthur E.
Wissman Charles H.
Karlsen Ernest F.
Solis Jose M.
Tempo Research Corporation
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