23 April 2017 Compared performances of Rayleigh, Raman, and Brillouin distributed temperature measurements during concrete container fire test
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236G (2017) https://doi.org/10.1117/12.2263449
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
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.
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S. Delepine-Lesoille, S. Delepine-Lesoille, I. Planes, I. Planes, M. Landolt, M. Landolt, G. Hermand, G. Hermand, O. Perrochon, O. Perrochon, } "Compared performances of Rayleigh, Raman, and Brillouin distributed temperature measurements during concrete container fire test", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236G (23 April 2017); doi: 10.1117/12.2263449; https://doi.org/10.1117/12.2263449
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