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Proceedings Paper

Single-mode optical fiber liquids analyzer
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Paper Abstract

We propose a single-mode optical fiber sensor for characterization of physical and chemical properties of liquids. The sensor is based on monitoring changes in the back-reflected signal from the interface between the fiber end-face and the liquid sample. Changes in the reflection spectrum are registered while dipping the cleaved end of an optical fiber into liquid samples and different spectral variations are observed owing as a consequence of characteristic properties, such as surface tension, viscosity and refractive index, among others. We present results obtained for different liquids (distilled water, methanol, glycerin, silicone, mineral oil) showing the feasibility of this approach for developing a simple fiber optic liquid analyzer.

Paper Details

Date Published: 14 October 2010
PDF: 4 pages
Proc. SPIE 7839, 2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2), 78391W (14 October 2010); doi: 10.1117/12.868277
Show Author Affiliations
Violeta A. Márquez-Cruz, Univ. Nacional Autónoma de México (Mexico)
Juan A. Hernández-Cordero, Univ. Nacional Autónoma de México (Mexico)


Published in SPIE Proceedings Vol. 7839:
2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2)
Juan Hernández-Cordero; Ismael Torres-Gómez; Alexis Méndez, Editor(s)

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