A Self-Referencing Intensity Based Polymer Optical Fiber Sensor for Liquid Detection
Data(s) |
01/04/2014
01/04/2014
01/08/2009
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Resumo |
A novel self-referencing fiber optic intensity sensor based on bending losses of a partially polished polymer optical fiber (POF) coupler is presented. The coupling ratio (K) depends on the external liquid in which the sensor is immersed. It is possible to distinguish between different liquids and to detect their presence. Experimental results for the most usual liquids found in industry, like water and oil, are given. K value increases up to 10% from the nominal value depending on the liquid. Sensor temperature dependence has also been studied for a range from 25 degrees C (environmental condition) to 50 degrees C. Any sector requiring liquid level measurements in flammable atmospheres can benefit from this intrinsically safe technology. |
Identificador |
Sensors 9(8) : 6446-6455 (2009) 1424-8220 http://hdl.handle.net/10810/11907 10.3390/s90806446 |
Idioma(s) |
eng |
Publicador |
MDPI |
Relação |
http://www.mdpi.com/1424-8220/9/8/6446 |
Direitos |
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). info:eu-repo/semantics/openAccess |
Palavras-Chave | #polymer optical fiber #POF coupler #intensity based optical sensor; #bending losses #liquid level #level sensor |
Tipo |
info:eu-repo/semantics/article |