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Proceedings Paper

Tunable laser based carbon composite strain sensing system using wavelength division multiplexed fiber Bragg grating sensors
Author(s): Michael J. Connelly; Senan Moloney; Paul Butler
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Paper Abstract

A carbon composite strain sensing system using an embedded array of polymide-coated fiber Bragg grating sensors, which are interrogated by a tunable laser, is described. The system is controlled from a personal computer using a customized program. The system was tested using a composite panel consisting of 28 plies of carbon fiber. Consistent strain measurements were achieved using a laser scan resolution of 0.02 nm, which corresponds to a strain resolution of approximately 15 me. Simulations of the panel were carried out using the Marc/Mentat finite element program for advanced engineering analysis. The experimental results compared well to those obtained from the simulations.

Paper Details

Date Published: 16 May 2005
PDF: 7 pages
Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005); doi: 10.1117/12.597723
Show Author Affiliations
Michael J. Connelly, Univ. of Limerick (Ireland)
Senan Moloney, Univ. of Limerick (Ireland)
Paul Butler, Univ. of Limerick (Ireland)


Published in SPIE Proceedings Vol. 5758:
Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems
Eric Udd; Daniele Inaudi, Editor(s)

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