9 September 2010 Bridge monitoring by Brillouin-based distributed strain measurements
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Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 765344 (2010) https://doi.org/10.1117/12.866253
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal
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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aldo Minardo, Aldo Minardo, Romeo Bernini, Romeo Bernini, Lucio Amato, Lucio Amato, Luigi Zeni, Luigi Zeni, "Bridge monitoring by Brillouin-based distributed strain measurements", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765344 (9 September 2010); doi: 10.1117/12.866253; https://doi.org/10.1117/12.866253
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