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Proceedings Paper

Angle transducer based on fiber Bragg gratings able for tunnel auscultation
Author(s): A. Quintela; J. M. Lázaro; M. A. Quintela; J. Mirapeix; V. Muñoz-Berti; J. M. López-Higuera
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Paper 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.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765318 (8 September 2010); doi: 10.1117/12.866268
Show Author Affiliations
A. Quintela, Univ. de Cantabria (Spain)
J. M. Lázaro, Univ. de Cantabria (Spain)
M. A. Quintela, Univ. de Cantabria (Spain)
J. Mirapeix, Univ. de Cantabria (Spain)
V. Muñoz-Berti, Univ. de Cantabria (Spain)
J. M. López-Higuera, Univ. de Cantabria (Spain)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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