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Proof of Concept of Impact Detection in Composites Using Fiber Bragg Grating Arrays
Department of Communications Engineering, Faculty of Engineering, University of the Basque Country, Alda Urquijo, s/n. Bilbao 48013, Spain
Aeronautical Technologies Center, Technologic Park of Alava, C/Juan de la Cierva 1, Miñano 01510, Alava, Spain
* Author to whom correspondence should be addressed.
Received: 25 July 2013; in revised form: 3 September 2013 / Accepted: 3 September 2013 / Published: 9 September 2013
Abstract: Impact detection in aeronautical structures allows predicting their future reliability and performance. An impact can produce microscopic fissures that could evolve into fractures or even the total collapse of the structure, so it is important to know the location and severity of each impact. For this purpose, optical fibers with Bragg gratings are used to analyze each impact and the vibrations generated by them. In this paper it is proven that optical fibers with Bragg gratings can be used to detect impacts, and also that a high-frequency interrogator is necessary to collect valuable information about the impacts. The use of two interrogators constitutes the main novelty of this paper.
Keywords: structural health monitoring; fiber Bragg grating; remote sensing; optical sensors
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MDPI and ACS Style
Gomez, J.; Jorge, I.; Durana, G.; Arrue, J.; Zubia, J.; Aranguren, G.; Montero, A.; López, I. Proof of Concept of Impact Detection in Composites Using Fiber Bragg Grating Arrays. Sensors 2013, 13, 11998-12011.
Gomez J, Jorge I, Durana G, Arrue J, Zubia J, Aranguren G, Montero A, López I. Proof of Concept of Impact Detection in Composites Using Fiber Bragg Grating Arrays. Sensors. 2013; 13(9):11998-12011.
Gomez, Javier; Jorge, Iagoba; Durana, Gaizka; Arrue, Jon; Zubia, Joseba; Aranguren, Gerardo; Montero, Ander; López, Ion. 2013. "Proof of Concept of Impact Detection in Composites Using Fiber Bragg Grating Arrays." Sensors 13, no. 9: 11998-12011.