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Fibre optic sensor systems have been developed for characterization and monitoring of structural elements. The particular application area reported here is on testing of pultruded composite beams. Demodulation schemes for in-fibre Bragg grating strain sensors using either acousto-optic tuneable filters or passive techniques are described. It is found that the fibre optic sensor measurements correspond well with those of standard electrical gauges, and demonstrate their potential as on-line structural diagnostic devices.

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Authors: KENNY R P, JRC Ispra (IT);GUTIERREZ E, JRC Ispra (IT);WHELAN M P, JRC Ispra (IT);LUCIA A C, JRC Ispra (IT)
Bibliographic Reference: Article: Advanced Composite Letters
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