Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1998-06-02
1999-08-03
Medley, Sally C.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 86, 324715, H02H 326
Patent
active
059333090
ABSTRACT:
An electronic module tester measures the difference between the voltage provided by the tester during testing and the voltage actually delivered to an electronic device. The difference corresponds to a voltage drop associated with the contamination contact resistance. This resistance builds up on contact surfaces of the tester as many modules are inserted and extracted. One power line and one ground line from the electronic module are isolated and connected to a voltmeter for a direct measurement of voltage on the device. A comparison is made with the power supply voltage provided by the tester to the device under test. A voltage difference exceeding a predetermined value initiates further action prior to continued testing, such as contact cleaning.
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patent: 5498972 (1996-03-01), Haulin
patent: 5587865 (1996-12-01), Bielig et al.
patent: 5600249 (1997-02-01), Yagi et al.
patent: 5838160 (1998-11-01), Beaman et al.
International Business Machines - Corporation
Leas James M.
Medley Sally C.
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