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Type: Artigo de evento
Title: Application Of A Photonic Crystal Fiber Lpg For Vibration Monitoring
Author: Nascimento I.M.
Marco Sousa G.C.
Osorio J.H.
Baptista J.M.
Cordeiro C.M.B.
Jorge P.A.S.
Abstract: A fiber optic sensor based on a long-period grating (LPG) inscribed in a photonic crystal fiber is investigated for vibration sensing for structural monitoring applications. In this paper, preliminary results are shown demonstrating the sensor ability to detect vibration induced in a test structure. The sensor frequency response when attached to a loudspeaker-acrylic plate stimulation system (tested in the range from 40 Hz to 2.5 kHz) is analyzed using an intensity based scheme with a tunable laser. An alternative interrogation scheme, where the vibration signal is retrieved from a spectral scan, is also demonstrated and analyzed showing promising characteristics for structural health monitoring. © 2013 SPIE.
Rights: aberto
Identifier DOI: 10.1117/12.2026723
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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