Apparatus and method for preventing spurious signals to the radi

Details Apparatus and method for preventing spurious signals to the radi Apparatus and method for preventing spurious signals to the radi

1990-08-14

1992-06-30

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of electrically operated apparatus

324532, 324545, 324546, G01R 3134

Patent

active

051266776

ABSTRACT:
An apparatus for the deletion of extraneous signals to a radio frequency monitor is described having a first radio frequency sensor disposed at the neutral common ground of a dynamoelectric machine and delivering radio frequency signals from all sources to a switch at the input of a radio frequency monitor and further having auxiliary radio frequency sensors disposed at sources of normal radio frequency activity and providing signals of such normal activity to a deletion pulse generator which issues a blocking pulse to said switch thereby deleting RF noise from normal sources which otherwise may produce false warnings and restrict the diagnostic utility of radio frequency monitoring of an electric power generator or an electric motor.

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patent: 4897607 (1990-01-01), Grunewald et al.

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