In situ refraction index of liquid measurement using polymer optical fibers

Lomer Barboza, Mauro Matías; Zubia Zaballa, Joseba Andoni; Conde Portilla, Olga María; Mirapeix Serrano, Jesús María; Cubillas de Cos, Ana María; López Higuera, José Miguel

doi:10.1117/12.566697

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Identificadores

URI: http://hdl.handle.net/10902/2346

DOI: 10.1117/12.566697

ISSN: 1996-756X

ISSN: 0277-786X

Fecha

2004-06-09

Derechos

© 2004 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Publicado en

Proceedings of SPIE, 2004, vol. 5502, 325-328

Second European Workshop on Optical Fibre Sensors, Santander, 2004

Editorial

SPIE Society of Photo-Optical Instrumentation Engineers

Enlace a la publicación

http://dx.doi.org/10.1117/12.566697

Palabras clave

Liquid refractive index measurement

Polymer optical fiber

Resumen/Abstract

A device for the measure of index of refraction of liquids in situ based on polymer optical fibers (POFs) was demonstrated. It consists in a sensor head of three passive POFs where two are coupled to two detectors and an electronic unit for the differential measure of signals. A differential operating principle is utilized to reduce noise such as light intensity fluctuation. The device was successfully checked measuring refraction index changes of the water with different concentrations of sugar, salt and alcohol.

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