Apparatus and method for detecting arcing in a CRT

Details Apparatus and method for detecting arcing in a CRT Apparatus and method for detecting arcing in a CRT

1995-08-25

1997-08-19

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324127, 324529, G01R 3102

Patent

active

056592523

ABSTRACT:
A method and apparatus for detecting and indicating the number of times a CRT unit arcs. The apparatus is constructed of a ferrite split toroid core wound with wire which is coupled around the focus lead and/or ground lead of a CRT through which a current spike will occur during an arcing event. The wound wire is coupled to a current pulse detector which in turn is coupled to a monostable mode timer and counter for counting the number of arcing events. The counter is coupled to a display device for displaying the number of times the CRT has arced.

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