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Proceedings Paper

Modeling and experimental strain measurements on a nonhomogeneous cylinder under transverse load
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Paper Abstract

Optical fiber sensors have the capability of sensing environmental factors, including strain and temperature. In particular, optical fiber Bragg gratings have been used to create multi-parameter sensors capable of measuring axial and transverse strain in addition to temperature. These measurements are made by writing gratings into the optical fibers at two separated wavelengths, 1300 and 1550 nm, and monitoring the polarization sensitive output from the sensor. While there is an analytical model for determining the strain on a homogeneous cylinder under transverse load, these fiber optic sensors are not homogeneous as they consist of distinct regions within the fiber: core, cladding, and stress rods. We measure the strain on a multi-parameter fiber Bragg grating written at 1550nm under transverse load at 0, 15, 30, 45, 60, 75, and 90° and compare these values with an analytical solution accounting for internal stresses and transverse load.

Paper Details

Date Published: 27 July 2004
PDF: 7 pages
Proc. SPIE 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, (27 July 2004); doi: 10.1117/12.541589
Show Author Affiliations
John A. Viator, Blue Road Research (United States)
Oregon Health & Science Univ. (United States)
Stephen T. Kreger, Blue Road Research (United States)
Michele W. Winz, Blue Road Research (United States)
Eric Udd, Blue Road Research (United States)

Published in SPIE Proceedings Vol. 5384:
Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems
Eric Udd; Daniele Inaudi, Editor(s)

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