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 Optical fiber accelerometer system for structural dynamic monitoring
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6014

title: Optical fiber accelerometer system for structural dynamic monitoring
authors: Antunes, Paulo Fernando da Costa
Lima, Hugo F. T.
Alberto, Nélia Jordão
Rodrigues, Hugo
Pinto, Pedro M. F.
Pinto, João de Lemos
Nogueira, Rogerio N.
Varum, Humberto
Costa, Aníbal G.
André, Paulo Sérgio
keywords: Accelerometer
Fiber Bragg grating (FBG)
Optical sensor
Structural health monitoring (SHM)
issue date: 2009
publisher: IEEE
abstract: In this study, the implementation of an optical accelerometer unit based on fiber Bragg gratings, suitable to monitor structures with frequencies up to 45 Hz, is reported. The developed optical system was used to estimate the structure eigenfrequencies of a steel footbridge, with a total length of 300 m, over the Sao Pedro Creek, located at University of Aveiro Campus, in Portugal. The acceleration records measured with this solution are compared with those obtained by traditional commercial electronic devices, revealing a root-mean-square error of 2.53 x 10(-5) G.
URI: http://hdl.handle.net/10773/6014
ISSN: 1530-437X
publisher version/DOI: http://dx.doi.org/10.1109/JSEN.2009.2026548
source: IEEE Sensors Journal
appears in collectionsCIVIL - Artigos

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