Tactile opto-electronic pressure sensor
AssigneeForschungszentrum Karlsruhe GmbH
InventorsRainer Wolf, Lothar Gamer, Harald Fischer
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Abstract
In a pressure sensing system comprising a tactile pressure sensor with an opaque cylindrical body disposed in a tube and having axial passages extending between its opposite end faces, an electroluminescent foil is disposed at one end face and a support body which includes light collecting means is disposed at the other end face so that light emitted by the luminescent foil and passing through the passages--dependent on the pressure applied to the one end face--is conducted to an imaging device for determining the pressure distribution applied to the one end face of the cylindrical body.
Claims8
A pressure sensor system, comprising a tactile pressure sensor with an opaque cylindrical body consisting of an elastomer material, said cylindrical body having opposite axial end faces and including a plurality of passages extending axially between said end faces, an electroluminescent foil disposed on one of said end faces such that light generated by said electroluminescent foil is directed through said passages, a resilient envelope disposed on said electroluminescent foil such that pressure forces applied to said resilient envelope are transmitted to said cylindrical body, said cylindrical body being closely surrounded by a tube having a portion projecting beyond the other end face of said cylindrical body, and a support body disposed in said projecting tube portion adjacent said cylindrical body, said support body including means for collecting light shining through said passages in said cylindrical body and conducting it to an imaging device which includes an opto-electronic interface.
Dependencies are inferred from the claim text.