Electricity: measuring and testing – Plural – automatically sequential tests
Patent
1983-03-07
1986-01-21
Krawczewicz, Stanley T.
Electricity: measuring and testing
Plural, automatically sequential tests
324158F, G01R 1512
Patent
active
045659664
ABSTRACT:
A method and apparatus for testing circuit boards using two or a small number of probes for making resistive and radio frequency impedance measurements e.g. capacitive measurements. The combination of resistive and impedance measurements substantially reduces the number of tests required to verify the integrity of a circuit board. The impedance or capacitive "norm" values used in testing the circuit boards can be obtained by operating the system in a learning mode. Analysis of the data provides not only fault detection but also can indicate approximate fault location.
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Burr James B.
Burr Robert P.
Christophersen James C.
Crowell Jonathan C.
Keogh Raymond J.
Harvey Jack B.
Kollmorgen Technologies Corporation
Krawczewicz Stanley T.
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