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Proceedings Paper

Bridge monitoring by Brillouin-based distributed strain measurements
Author(s): Aldo Minardo; Romeo Bernini; Lucio Amato; Luigi Zeni
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Paper Abstract

We report the results of a load test performed on a road-bridge. In particular, the tests were performed by a portable prototype based on stimulated Brillouin scattering in optical fibers. The optical fiber sensor was able to provide the strain profile along the beam, with a spatial resolution of three meters and a strain accuracy of ± 20 εμ. Comparison with finite-elements-method simulations, as well as with data collected by vibrating wire strain gauges, permitted to confirm the validity of the SBS-based approach in monitoring the deformation of large structures.

Paper Details

Date Published: 9 September 2010
PDF: 3 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765344 (9 September 2010); doi: 10.1117/12.866253
Show Author Affiliations
Aldo Minardo, Second Univ. of Naples (Italy)
Romeo Bernini, Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
Lucio Amato, Tecno In S.p.A. (Italy)
Luigi Zeni, Second Univ. of Naples (Italy)
Consortium for Research on Advanced Remote Sensing Systems (Italy)


Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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