Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1991-12-13
1993-10-05
Strecker, Gerard R.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324158F, 324537, 324539, 340635, G10R 3102, G08B 2100
Patent
active
052509087
ABSTRACT:
A device for testing multi-wire harnesses, printed wiring board assemblies and card cages for wiring faults. The device comprises power and logic circuits in a housing, a fault indicator panel, a resistance balance circuit and a low voltage wiring test array. The wire harness is connected with both ends of the wires to sets of terminals on the wiring test array. In testing a wire harness, the operator grasps two probes which are attached to the resistance balance circuit and wipes them on the terminals of the test array. For test of printed wiring board assemblies or card cages, only one probe is required to contact the terminals on the test array. This action causes the resistance balance circuit to combine with the wiring test array segment and a wiring harness wire to form a voltage divider circuit which outputs voltage signals related to the wiring status. The device logic processes these signals and causes any fault indication to illuminate on the indicator panel. The device is light, and portable and offers the advantages of low cost, ease of use, safety and simplicity.
REFERENCES:
patent: 4620282 (1986-10-01), Shelley
patent: 5029274 (1991-07-01), Goff et al.
patent: 5095276 (1992-03-01), Nepil
IBM Technical Disclosure Bulletin vol. 13 No. 11 Apr. 1971 324(539) Malin.
Liu Liemeng
Smith Gerald L.
Do Diep
Magl Power & Electronics, Inc.
Strecker Gerard R.
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