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Open AccessArticle

Proof of Concept of Impact Detection in Composites Using Fiber Bragg Grating Arrays

1
Department of Communications Engineering, Faculty of Engineering, University of the Basque Country, Alda Urquijo, s/n. Bilbao 48013, Spain
2
Aeronautical Technologies Center, Technologic Park of Alava, C/Juan de la Cierva 1, Miñano 01510, Alava, Spain
*
Author to whom correspondence should be addressed.
Sensors 2013, 13(9), 11998-12011; https://doi.org/10.3390/s130911998
Received: 25 July 2013 / Revised: 3 September 2013 / Accepted: 3 September 2013 / Published: 9 September 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
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. View Full-Text
Keywords: structural health monitoring; fiber Bragg grating; remote sensing; optical sensors structural health monitoring; fiber Bragg grating; remote sensing; optical sensors
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.

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