Fiber Specklegram Sensors sensitivities at high temperatures

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URI: http://hdl.handle.net/10902/10049
ISSN: 0277-786X
ISSN: 1996-756X
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Autoría
Rodríguez Cobo, LuisAutoridad Unican; Lomer Barboza, Mauro MatíasAutoridad Unican; López Higuera, José MiguelAutoridad Unican
Fecha
2015
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Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Publicado en
Proceedings of SPIE, 2015, 9634, 96347J
24th International Conference on Optical Fibre Sensors, Curitiba, Brazil, 2015
Editorial
SPIE Society of Photo-Optical Instrumentation Engineers
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Palabras clave
High temperature
Speckle patterns
Optical fiber sensor
Resumen/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.
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