Extension type conductive rubber and process for making and meth

Details Extension type conductive rubber and process for making and meth Extension type conductive rubber and process for making and meth

1990-02-21

1994-08-09

Lieberman, Paul

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252510, 524495, 524496, 524588, 325100, 325105, 325106, H01B 100, H01B 120, H01B 124

Patent

active

053364422

ABSTRACT:
An extension type conductive rubber framed by impregnating a cross-linked conductive silicone rubber that contains suspended carbon particles, with a silicone oil having a compatibility with that conductive silicone rubber. The preferred extension type conductive rubber exhibits a predictable decrease in its electrical resistance when extended that directly relates to the magnitude of that extension, and thus can be used as a sensor for sensing various physical quantities such as a displacement, tensile force or pressure on the basis of the relationship between its extension and electrical resistance. In use, first and second electrodes are mounted to a section of the extension type conductive rubber so as to provide a press fit against the rubber and are spaced apart. The electrical resistance across the electrodes or their equivalent structure is sensed during an application of force to the rubber.

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