Elliptical-Core, Dual-Mode, Optical Fiber Strain and Vibration Sensors for Composite Material Laminates

    Volume 13, Issue 1 (March 1991)

    ISSN: 0884-6804

    CODEN: CTROAD

    Page Count: 7


    Vengsarkar, AM
    Research scientist, graduate research assistant, research associate, and director of the Fiber & Electro-Optics Research Center, Virginia Polytechnic Institute and State University, Bradley Department of Electrical Engineering, Blacksburg, VA

    Murphy, KA
    Research scientist, graduate research assistant, research associate, and director of the Fiber & Electro-Optics Research Center, Virginia Polytechnic Institute and State University, Bradley Department of Electrical Engineering, Blacksburg, VA

    Miller, MS
    Research scientist, graduate research assistant, research associate, and director of the Fiber & Electro-Optics Research Center, Virginia Polytechnic Institute and State University, Bradley Department of Electrical Engineering, Blacksburg, VA

    Claus, RO
    Research scientist, graduate research assistant, research associate, and director of the Fiber & Electro-Optics Research Center, Virginia Polytechnic Institute and State University, Bradley Department of Electrical Engineering, Blacksburg, VA

    Abstract

    We present a novel class of rugged, lead-insensitive, fiber optic sensors for the measurement of strain and vibration in composite material laminates. The sensors are embedded within the material as well as attached to the surface in a retrofit fashion. Static strain measurement is demonstrated by attaching the fiber sensor to a metallic beam. Modal components of a vibrating cantilever beam have been resolved using such sensors. Sensors with variable sensitivity have been demonstrated by placing the sensing fiber at varying distances from the neutral axis of the beam.


    Paper ID: CTR10071J

    DOI: 10.1520/CTR10071J

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    Author
    Title Elliptical-Core, Dual-Mode, Optical Fiber Strain and Vibration Sensors for Composite Material Laminates
    Symposium , 0000-00-00
    Committee D30