Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1975-06-25
1976-08-17
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
324 73PC, 324158R, G01R 2702
Patent
active
039756807
ABSTRACT:
A circuit circuit tester is provided for testing circuit runs of a circuit board for electrical continuity and electrical shorts. An electrical probe connected to one side of a capacitance meter is used to contact a particular circuit run, and an electrically conductive plate connected to the other side of the capacitance meter is maintained co-planar with and in close proximity to the circuit board to provide a suitable ground in the electrical test circuit, the capacitance of which circuit is a function of the electrical integrity of the circuit run. The measured capacitance is compared to a predetermined capacitance value for an identical circuit run of known acceptable quality to determine the electrical integrity of the tested circuit run.
REFERENCES:
patent: 2932790 (1960-04-01), Davis et al.
patent: 3243701 (1966-03-01), Strand
Brown, Dielectric Sensing Device, IBM Technical Disclosure Bulletin, Oct. 1959, p. 1.
Boehringer et al., Electrical Probe Control, IBM Technical Disclosure Bulletin, Nov. 1970.
Holloway, Jr. William W.
Honeywell Information Systems Inc.
Hughes Edward W.
Krawczewicz Stanley T.
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