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Angle transducer based on Fiber Bragg gratings able for 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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Authorship: Quintela A., Lázaro J., Quintela M., Mirapeix J., Muñoz-Berti V., López-Higuera J.,

Congress: European Workshop on Optical Fibre Sensors, EWOFS (4º : 2010 : Oporto)

Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

Publication date: 09/08/2010

No. of pages: 4

Publication type: Conference object

DOI: 10.1117/12.866268

ISSN: 0277-786X,1996-756X

Spanish project: TEC2007-67987-C02-01

Publication Url: https://doi.org/10.1117/12.866268

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Authorship

ANTONIO QUINTELA INCERA

JOSE MIGUEL LAZARO URRUTIA

MARIA ANGELES QUINTELA INCERA

JESUS MARIA MIRAPEIX SERRANO

VICTOR MANUEL MUÑOZ BERTI

JOSE MIGUEL LOPEZ HIGUERA

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