Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1997-03-05
1999-08-03
Brown, Glenn W.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324754, 324419, 335151, 335152, 307132E, 361206, G01R 3102, G01R 3126
Patent
active
059330198
ABSTRACT:
An electro-mechanical reed relay in-circuit test fixture switch is inserted onto a wrapped wire pin extending from the bottom of a socket holding a spring-loaded nail inside a bed-of-nails or equivalent testing fixture. The switch is located at the circuit board being tested and is connected between the pin under test and a remote testing unit. Only the switches required to contact specific nodes for a specific test are actuated, i.e. moving the subject pin's reed relay switch to a closed position, during the actual test sequence. All remaining test wires are turned off, i.e. opened, releasing the electrical connection of long test wires from each of the nodes. Alternatively, all switches can be NC and individual switches, or groups of switches, can be opened to disconnect the electrical connections of the long test wires. Additional testing is performed in a similar method by repeating the steps above for various test sequences and nodes.
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Brown Glenn W.
Lacasse Randy W.
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