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The Influence of Sputter Deposited Coatings on Strain Transfer in Embedded Fiber Optic Sensors

Published online by Cambridge University Press:  15 February 2011

J. S. Madsen ,
A. P. Jardine ,
R. J. Meilunas ,
Y. E. Pak  and
A. Tobin
J. S. Madsen
Affiliation:
SUNY/Stony Brook, Stony Brook, NY 11802
A. P. Jardine
Affiliation:
SUNY/Stony Brook, Stony Brook, NY 11802
R. J. Meilunas
Affiliation:
Grumman Corporate Research Center Mail Stop A02-26, Bethpage, NY 11714
Y. E. Pak
Affiliation:
Grumman Corporate Research Center Mail Stop A02-26, Bethpage, NY 11714
A. Tobin
Affiliation:
Grumman Corporate Research Center Mail Stop A02-26, Bethpage, NY 11714
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Abstract

Understanding elastic interactions that occur between an embedded optical fiber and its host matrix is important for implementation of optical strain sensors into aerospace structures. A previously developed analytical model predicted the effects of fiber coating thickness and elastic modulus on the strain transfer from an isotropic matrix to an embedded coated fiber optic.To verify this, a series of tungsten coatings were magnetron sputtered onto bare intrinsic Fabry-Perot sensors that were embedded into a neat epoxy resin block. The block was then compression loaded and the optical strain response measured. Comparisons between the responses of both coated and uncoated sensors indicated that the experimental measurements of strain transfer in embedded fiber-optic devices yielded good agreement with the analytical model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 305: Symposium I – High-Performance Polymers and Polymer Matrix Composites , 1993 , 147
Copyright
Copyright © Materials Research Society 1993

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