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Proceedings Paper

Fiber Bragg grating sensors embedded in concrete samples for a normalized fire test
Author(s): Antonio Bueno; Benjamín Torres; David Barrera; Pedro Calderón; José Manuel Lloris; María José López; Salvador Sales
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Paper Abstract

Optical fiber sensors based on Fiber Bragg Gratings (FBG) have been embedded in concrete samples for temperature measurement. Three different types of gratings have been used in this experiment: FBGs inscribed in photosensitive germanium-boron codoped fiber and Regenerated Fiber Bragg Gratings (RFBG) inscribed in germanium doped and in germanium-boron codoped fiber. The concrete samples were placed inside a fire chamber where the temperature was increased above 1000ºC as described in the Spanish/European standard UNE-EN 1363-1 temperature profile for concrete resistance to real fire. The temperature was monitored in real time. We have compared the performance of the optical sensors and electrical thermocouples. The RFBGs have shown a very good performance while the FBGs are able to monitor high-temperatures until their disappearance.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538R (18 May 2011); doi: 10.1117/12.885928
Show Author Affiliations
Antonio Bueno, Univ. Politécnica de Valencia (Spain)
Benjamín Torres, Univ. Politécnica de Valencia (Spain)
David Barrera, Univ. Politécnica de Valencia (Spain)
Pedro Calderón, Univ. Politécnica de Valencia (Spain)
José Manuel Lloris, Instituto Tecnologico de la Construcción (Spain)
María José López, Instituto Tecnologico de la Construcción (Spain)
Salvador Sales, Univ. Politécnica de Valencia (Spain)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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