Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1998-06-15
1999-07-27
Noori, Max H.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
324700, 374 50, G01B 716
Patent
active
059293403
ABSTRACT:
An environmental test apparatus has a thermal chamber for stress testing electronic products and a wall separating the thermal chamber from ambient air around the apparatus. In the improvement, the wall comprises a pair of barrier walls having a flexible partition interposed between them. The barrier walls and the flexible partition substantially isolate the ambient air from the thermal chamber. The apparatus also includes a platform in the ambient air and a feedthrough card extending from the platform through the flexible partition into the thermal chamber.
In one, more specific embodiment, the barrier walls are below the thermal chamber and the platform is below the barrier walls. In other embodiments, the barrier walls are lateral to the thermal chamber and the apparatus includes one or two racks, also lateral to such chamber. One or respective platforms are supported on the rack(s).
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Cochran John
Perry Roger L.
Noori Max H.
RPI, Inc.
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