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Proceedings Paper

Simultaneous measurement of two strain components using passive demodulation
Author(s): Yu-Lung Lo; James S. Sirkis
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Paper Abstract

This paper uses 3 X 3 coupler passive demodulation of combined Michelson and polarimetric optical fiber sensors to simultaneously measure axial and transverse strain components in a single optical fiber bonded to a vibrating cantilever beam. The separated Michelson and polarimetric signals are used with isothermal Michelson and polarimetric phase strain-models to provide two independent equations describing the strain in the fiber. These equations provide enough information to calculate axial and transverse strains in surface mounted sensors.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); doi: 10.1117/12.173988
Show Author Affiliations
Yu-Lung Lo, Univ. of Maryland/College Park (United States)
James S. Sirkis, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 2191:
Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation
James S. Sirkis, Editor(s)

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