A novel distributed fiber-optic strain sensor

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Title:	A novel distributed fiber-optic strain sensor
Author:	García Hernández, Miguel J.; Ortega Redondo, Juan Antonio; Chávez Domínguez, Juan Antonio; Salazar Soler, Jorge; Turó Peroy, Antonio
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GSS - Grup Sistemes Sensors; Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group
Abstract:	The theory of operation of a fiber-optic-based strain sensor system, suitable for long structures, is described. The proposed sensor design is composed of several hundreds of sections separated by reflectors in order to monitor structures of more than 1 km of length. A quasi-distributed sensor structure accomplishes the best condition monitoring, where each section of the sensor integrates the measured magnitude, obtaining a value associated to the average shortening or elongation in this section. Tools for the design of the optical reflectors of the sensor are also provided, including a study of the optical noise due to multireflection within the system.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica -Optical fibers -Optical noise -Fibre optic sensors -Strain sensors -Condition monitoring -Elongation -Fibres òptiques
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Document type:	Article - Published version Article
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