Now showing items 1-4 of 4

    • Intrinsic Fabry-Perot optical fiber sensors and their multiplexing 

      Virginia Tech Intellectual Properties, Inc.; Wang, Anbo (United States Patent and Trademark Office, 2007-12-11)
      An intrinsic Fabry-Perot optical sensor includes a thin film sandwiched between two fiber ends. When light is launched into the fiber, two reflections are generated at the two fiber/thin film interfaces due to a difference ...
    • Method and apparatus for sensing strain in a waveguide 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Murphy, Kent A.; Claus, Richard O.; Zimmermann, Bernd D.; Kapp, David A. (United States Patent and Trademark Office, 1993-02-23)
      The present invention pertains to a strain sensor. The strain sensor is comprised of an optical wave guide, a device for providing optical pulses to the optical wave guide and a device for sensing localized strain in the ...
    • Self-calibrating optical fiber pressure, strain and temperature sensors 

      Virginia Tech Intellectual Properties, Inc.; Wang, Anbo (United States Patent and Trademark Office, 1999-10-05)
      Broadband energy incident on a transducer having partially or fully reflective surfaces separated by a gap which is greater than the coherence length of the broadband energy but smaller than one-half a coherence length of ...
    • Self-calibrating optical fiber pressure, strain and temperature sensors 

      Virginia Tech Intellectual Properties, Inc.; Zhao, Wei W.; Wang, Anbo; Wang, Jun; Xiao, Hai (United States Patent and Trademark Office, 2000-05-30)
      Broadband energy incident on a transducer having partially or fully reflective surfaces separated by a gap which is greater than the coherence length of the broadband energy but smaller than one-half a coherence length of ...