Now showing items 1-3 of 3

    • Modal domain optical fiber sensors 

      Virginia Tech Intellectual Properties, Inc.; Claus, Richard O.; Bennett, K. D. (United States Patent and Trademark Office, 1989-08-08)
      A modal domain optical fiber sensor for vibration monitoring and as a mechanical motion detector. A laser that focuses coherent light through a lens into one end of a multimode optical fiber. The fiber is secured to a ...
    • Optical fiber pressure and acceleration sensor fabricated on a fiber endface 

      Virginia Tech Intellectual Properties, Inc.; Wang, Anbo; Zhu, Yizheng; Wang, Xingwei; Xu, Juncheng (United States Patent and Trademark Office, 2006-05-30)
      A fiber optic sensor has a hollow tube bonded to the endface of an optical fiber, and a diaphragm bonded to the hollow tube. The fiber endface and diaphragm comprise an etalon cavity. The length of the etalon cavity changes ...
    • Spatially-weighted two-mode optical fiber sensors 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Murphy, Kent A.; Claus, Richard O.; Vengsarkar, Ashish; Fogg, Brian R.; Gunther, Michael F. (United States Patent and Trademark Office, 1993-06-29)
      Tapered two-mode optic fibers are used as sensors with sensitivity varying as a function of length. The optical fiber sensors act as vibrational-mode filters thereby performing initial signal processing of the sensor signal. ...