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9 December 1999 Cure monitoring of epoxy resin with silica optical fiber and OTDR
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Two fiber-optic cure sensors based on the refractive index measurement are presented. An optical fiber distal end reflectometer and a stripped claddind fiber refractive index sensor, both made by an optical fiber with the core refractive index of 1.558, are tried and tested to be calibrated and provide quantitative information during cure. The fiber reflectometer is confirmed to be suitable to be calibrated during cure and may be possible to provide quantitative cure extent when hybrided with an Optic Time Domain Reflector (OTDR). The stripped cladding refractive index sensor is found to be unsuitable for the purpose of being calibrated during cure.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chun Yang and Fei Luo "Cure monitoring of epoxy resin with silica optical fiber and OTDR", Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999);

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