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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 25 — Sep. 1, 1996
  • pp: 5198–5201

Impact and vibration detection in composite materials by using intermodal interference in multimode optical fibers

Abdelrafik Malki, Rachid Gafsi, Laurent Michel, Michel Labarrère, and Pierre Lecoy  »View Author Affiliations


Applied Optics, Vol. 35, Issue 25, pp. 5198-5201 (1996)
http://dx.doi.org/10.1364/AO.35.005198


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Abstract

An optical fiber sensor based on the intermodal interference principle is integrated in a composite material to detect impacts and vibrations. Six fibers are integrated at the top of a carbon/epoxy composite panel so as to form a grid into the structure. Spectral and temporal responses to impacts and acoustic vibrations of the sensor are compared with a piezoelectric accelerometer. The tests proved the facility of integration and the high sensitivity of the device. The location of impacts is performed with this arrangement by measuring the arrival times of the front waves to the fibers.

© 1996 Optical Society of America

History
Original Manuscript: January 2, 1996
Revised Manuscript: March 6, 1996
Published: September 1, 1996

Citation
Abdelrafik Malki, Rachid Gafsi, Laurent Michel, Michel Labarrère, and Pierre Lecoy, "Impact and vibration detection in composite materials by using intermodal interference in multimode optical fibers," Appl. Opt. 35, 5198-5201 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-25-5198

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