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TRAFIC MONITORING SYSTEM

  • US 20070031084A1
  • Filed: 06/20/2006
  • Published: 02/08/2007
  • Est. Priority Date: 06/20/2005
  • Status: Abandoned Application
First Claim
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1. A system for monitoring traffic across a structure, comprising:

  • a fiber Bragg grating (FBG) to reflect a light wavelength;

    a mounting mechanism to connect said FBG to the structure such that physical change of the structure changes a stress to said FBG that changes said light wavelength;

    optical fiber to carry a first light beam to said FBG and to carry a second light beam from said FGB, thereby permitting a said first light beam including said light wavelength to be received from a light source, permitting said first light beam to be altered into said second light beam by passing said light wavelength through said FBG, and permitting said second light beam to be provided to a detector to sense said light wavelength present in said second light beam and there from infer said stress in the structure and there from infer information about the traffic across a structure.

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