Dynamic Structural Health Monitoring of Slender Structures Using Optical Sensors

Sensors

Paulo Antunes²  Rui Travanca¹  Hugo Rodrigues¹  José Melo¹  José Jara³  Humberto Varum¹ 

[1] Departamento de Engenharia Civil da Universidade de Aveiro, 3810‐193 Aveiro, Portugal; E-Mails:;Instituto de Telecomunicações and Departamento de Física da Universidade de Aveiro, 3810‐193 Aveiro, Portugal; E-Mail:;Facultad de Ingeniería Civil de la Universidad Michoacana San Nicolás de Hidalgo, 58040 Morelia, Michoacán, Mexico; E-Mail:

关键词: fiber Bragg gratings;    fiber-based sensors;    accelerometer;    structural health monitoring;   

DOI  :  10.3390/s120506629

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.