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Compared performances of Rayleigh, Raman, and Brillouin distributed temperature measurements during concrete container fire test
Author(s): S. Delepine-Lesoille; I. Planes; M. Landolt; G. Hermand; O. Perrochon
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Paper Abstract

We present a distributed fiber optic sensing scheme to study 3D temperature fields inside concrete containers submitted to fire. High spatial resolution (3cm to 13cm), temperature uncertainty better than 3°C and rapid measurements (in the minute range) were required. We thus compared advantages and drawbacks of three sensing chains, based on Rayleigh, Brillouin and Raman scatterings; such distributed measurements were also compared with thermocouples (up to 250 measuring points). Practical field implementation limits are also underlined. Fire tests are a promising application for distributed optical fiber sensors.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236G (23 April 2017); doi: 10.1117/12.2263449
Show Author Affiliations
S. Delepine-Lesoille, ANDRA (France)
I. Planes, ANDRA (France)
M. Landolt, ANDRA (France)
G. Hermand, ANDRA (France)
O. Perrochon, ANDRA (France)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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