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28 September 2015 Fiber specklegram sensors sensitivities at high temperatures
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347J (2015) https://doi.org/10.1117/12.2194288
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
In this work, the sensitivity of Fiber Specklegram Sensors to high temperatures (up to 800ºC) have been studied. Two multimode silica fibers have been introduced into a tubular furnace while a HeNe laser source was launched into a fiber edge, projecting speckle patterns to a commercial webcam. A computer generated different heating and cooling sweeps while the specklegram evolution was recorded. The achieved results exhibit a remarkably linearity in FSS’s sensitivity for temperatures under 800ºC, following the thermal expansion of fused silica.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Rodriguez-Cobo, M. Lomer, and J. M. Lopez-Higuera "Fiber specklegram sensors sensitivities at high temperatures", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347J (28 September 2015); https://doi.org/10.1117/12.2194288
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