Electricity: measuring and testing – Plural – automatically sequential tests
Patent
1986-12-23
1988-10-18
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Plural, automatically sequential tests
324 73AT, 371 20, 371 25, G01R 1332, G06F 1100
Patent
active
047790423
ABSTRACT:
A probe is connected to a tri-state circuit which generates a programmable dc voltage to be impressed on a circuit node by the probed tip. Memory is provided for storing any change in tip voltage signifying a fault in the tri-state test. A separate circuit detects programmable data levels to eliminate gray area ambiguities. Further, a quick-check circuit determines whether a node is short circuited by determining whether toggling can occur at a node.
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Caiola Richard
Ugenti Michael
Eisenzopf Reinhard J.
Grumman Aerospace Corporation
Nguyen Vinh P.
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