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Electro-optic strain gages and transducer

  • US 5,812,251 A
  • Filed: 06/13/1994
  • Issued: 09/22/1998
  • Est. Priority Date: 06/13/1994
  • Status: Expired due to Fees
First Claim
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1. An electro optical strain gauge unit comprising at least one light source for emitting light, at least one light detector for receiving emitted light, a lens system of at least one lens for at least one of columnating and converging the light emitted by the light source or received by the light detector, and a deformable mounting pad having a planar surface adapted to be attached to a material for strain measurement and a recessed surface upon which the light source, light detector and lens system are mounted so that the light detector provides a signal proportional to the intensity of light received from the light source and passed through the lens system.

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