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Proceedings Paper

Simulations and experimental research of fiber optic contrast-based dislocation sensor
Author(s): Mieczyslaw Szustakowski; Norbert Palka; Wieslaw M. Ciurapinski
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Paper Abstract

The dislocation sensor based on the contrast phenomenon in an unbalanced fiber optic Michelson interferometer with a 3 x 3 coupler and a semiconductor multimode laser. Periodic contrast oscillations, which depend on a laser spectrum, occur if a measuring arm of the interferometer is elongated. A conception of the elongation sensor that based on linearization of contrast oscillations is shown. A virtual model of the sensor was built for simulations. For real parameters of 1-m long sensor, 5-mm measuring range with 12-mm uncertainty was obtained. Next, a setup of the sensor and signal processing scheme of real sensor is presented. During measurements we obtained 5-mm measuring range with ±28-mm uncertainty. Explanation of these differences and conclusion to further research are formulated.

Paper Details

Date Published: 1 September 2004
PDF: 8 pages
Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.549726
Show Author Affiliations
Mieczyslaw Szustakowski, Military Univ. of Technology (Poland)
Norbert Palka, Military Univ. of Technology (Poland)
Wieslaw M. Ciurapinski, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5459:
Optical Sensing
Brian Culshaw; Anna Grazia Mignani; Rainer Riesenberg, Editor(s)

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