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Sensors 2012, 12(5), 6629-6644; doi:10.3390/s120506629

Dynamic Structural Health Monitoring of Slender Structures Using Optical Sensors

1
Instituto de Telecomunicações and Departamento de Física da Universidade de Aveiro, 3810 193 Aveiro, Portugal
2
Departamento de Engenharia Civil da Universidade de Aveiro, 3810 193 Aveiro, Portugal
3
Facultad de Ingeniería Civil de la Universidad Michoacana San Nicolás de Hidalgo, 58040 Morelia, Michoacán, Mexico
*
Author to whom correspondence should be addressed.
Received: 26 March 2012 / Revised: 23 April 2012 / Accepted: 27 April 2012 / Published: 18 May 2012
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Portugal)
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Abstract

In this paper we summarize the research activities at the Instituto de Telecomunicações—Pólo de Aveiro and University of Aveiro, in the field of fiber Bragg grating based sensors and their applications in dynamic measurements for Structural Health Monitoring of slender structures such as towers. In this work we describe the implementation of an optical biaxial accelerometer based on fiber Bragg gratings inscribed on optical fibers. The proof-of-concept was done with the dynamic monitoring of a reinforced concrete structure and a slender metallic telecommunication tower. Those structures were found to be suitable to demonstrate the feasibility of FBG accelerometers to obtain the structures’ natural frequencies, which are the key parameters in Structural Health Monitoring and in the calibration of numerical models used to simulate the structure behavior. View Full-Text
Keywords: fiber Bragg gratings; fiber-based sensors; accelerometer; structural health monitoring fiber Bragg gratings; fiber-based sensors; accelerometer; structural health monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Antunes, P.; Travanca, R.; Rodrigues, H.; Melo, J.; Jara, J.; Varum, H.; André, P. Dynamic Structural Health Monitoring of Slender Structures Using Optical Sensors. Sensors 2012, 12, 6629-6644.

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