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Proceedings Paper

Low-cost miniature fiber-optic extrinsic Fabry-Perot interferometric pressure sensor for biomedical applications
Author(s): Sven Poeggel; Daniele Tosi; Gabriel Leen; Elfed Lewis
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Paper Abstract

A fiber-optic pressure sensor based in extrinsic Fabry-Perot interferometer (EFPI) is presented and discussed. The sensing probe is based on an inexpensive all-silica biocompatible design, with 0.2 mm outer diameter, suitable for disposable operation in medical catheters. A white-light interrogation system has been implemented, achieving a target accuracy of 1 mmHg and pressure stability of 1 mmHg/hour for long-term operation. A fiber Bragg grating (FBG) is added in proximity of the sensing tip, compensating temperature variations with 0.5°C accuracy. Design, simulation, and preliminary experimental validation are discussed.

Paper Details

Date Published: 17 June 2013
PDF: 6 pages
Proc. SPIE 8797, Advanced Microscopy Techniques III, 87970B (17 June 2013); doi: 10.1117/12.2031372
Show Author Affiliations
Sven Poeggel, Univ. of Limerick (Ireland)
Daniele Tosi, Univ. of Limerick (Ireland)
Gabriel Leen, Univ. of Limerick (Ireland)
Elfed Lewis, Univ. of Limerick (Ireland)

Published in SPIE Proceedings Vol. 8797:
Advanced Microscopy Techniques III
Emmanuel Beaurepaire; Peter T. C. So, Editor(s)

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