Fiber optic Raman backscatter temperature monitoring in composites

John H. Belk; Erwin W. Baumann; Michael L. Vandernoot

doi:10.1117/12.339957

4 February 1999 Fiber optic Raman backscatter temperature monitoring in composites

John H. Belk, Erwin W. Baumann, Michael L. Vandernoot

Proceedings Volume 3589, Process Control and Sensors for Manufacturing II; (1999) https://doi.org/10.1117/12.339957
Event: Nondestructive Evaluation Techniques for Aging Infrastructures and Manufacturing, 1999, Newport Beach, CA, United States

Abstract

Fiberoptic Raman backscatter based distributed temperature measurement systems have been available for several years. Recent efforts at Boeing have focused on developing methods to apply this equipment to monitoring the temperature of composite parts during manufacture, laboratory testing, and on-board application for health monitoring. A number of these applications involve embedding the temperature-sensing fiber directly into or onto composite parts. Several examples are given and lessons learned are discussed, including effects of microbending losses and how they are being addressed.

Citation Download Citation

John H. Belk, Erwin W. Baumann, and Michael L. Vandernoot "Fiber optic Raman backscatter temperature monitoring in composites", Proc. SPIE 3589, Process Control and Sensors for Manufacturing II, (4 February 1999); https://doi.org/10.1117/12.339957

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