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.
Cure monitoring of epoxy resin with silica optical fiber and OTDR
Fiber Optic Sensor Technology and Applications ; 1999 ; Boston,MA,USA
Proc. SPIE ; 3860
1999-12-09
Conference paper
Electronic Resource
English
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