Fiber Optic Cure Sensor for Thermoset Composites
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
We present recent experimental verification of a new in-situ fiber optic sensor [1] for detecting the curing of thermoset composites. This device is sensitive to the difference between the refractive index of the curing polymer matrix within the composite and that of a fully-cured reference fiber made of the same thermoset material. The method is indifferent to temperature variations imposed during the cure process.