Angle transducer based on fiber Bragg gratings able for tunnel auscultation

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URI: http://hdl.handle.net/10902/2424
ISSN: 1996-756X
ISSN: 0277-786X
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Author
Quintela Incera, AntonioAutoridad Unican; Lázaro Urrutia, José Miguel; Quintela Incera, María ÁngelesAutoridad Unican; Mirapeix Serrano, Jesús MaríaAutoridad Unican; Muñoz Berti, Víctor Manuel; López Higuera, José MiguelAutoridad Unican
Date
2010-09-08
Derechos
© 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Publicado en
Proceedings of SPIE, 2010, vol. 7653, 765318
Fourth European Workshop on Optical Fibre Sensors, Oporto, 2010
Publisher
SPIE Society of Photo-Optical Instrumentation Engineers
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Palabras clave
Angle transducer
Fiber Bragg grating
SHM
Tunnel auscultation
Abstract:
In this paper an angle transducer based on Fiber Bragg Grating (FBG) is presented. Two gratings are glued to a metallic platen, one in each side. It is insensitive to temperature changes, given that the temperature shifts affect equally to both FBG. When the platen is uniformly bent an uniform strain appears in both sides of the platen. It depends on the bend angle and the platen length and thickness. The transducer has been designed to be used in the auscultation of tunnels during their construction process and during their live time. The transducer design and its characterization are presented.
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