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Proceedings Paper

Spatial mode pattern stability with strain for a localized, single-ended, two-mode fiber optic strain sensor
Author(s): A. Tino Alavie; Barry G. Grossman
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Paper Abstract

An interrupt immune technique for the two-mode sensor is designed and developed. Preliminary results indicate a minimum resolution of half of one fringe for a 15-cm gauge length sensor in transmission. Also, a new derivation of the phase-strain relationship for a two-mode elliptical core fiber sensor has been carried out which shows an improvement of 5 percent when compared to the previous models. Finally, a procedure for single-ending and localizing the two-mode sensor is given in detail. A single-ended, localized sensor has been used in a cantilever beam experiment and yields a strain sensitivity of 0.1 rad/micro-epsilon m.

Paper Details

Date Published: 26 March 1993
PDF: 12 pages
Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, (26 March 1993); doi: 10.1117/12.141337
Show Author Affiliations
A. Tino Alavie, Univ. of Toronto (Canada)
Barry G. Grossman, Florida Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1798:
Fiber Optic Smart Structures and Skins V
Richard O. Claus; Robert S. Rogowski, Editor(s)

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