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Proceedings Paper

Fiber optic sensor for methanol quantification in biodiesel
Author(s): Marianne S. Kawano; Ricardo Canute Kamikawachi; José L. Fabris; Marcia Müller
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Paper Abstract

In this work a refractometric sensor for assessment of methanol presence in biodiesel is reported. The transducer relies on the interference between the forward and back propagating modes of a single long period grating, written close to an end-face mirror optical fiber. The sensing method is thermally assisted in order to overcome the drawback caused by the high refractive index (close to the fiber cladding index) of methanol-biodiesel blends at low temperatures. Sensor showed a combined standard uncertainty of 0.6 % v/v of methanol in biodiesel for a confidence level of 68.27%, within the methanol concentration ranging from 0 to 25 % v/v.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91578Z (2 June 2014); doi: 10.1117/12.2058114
Show Author Affiliations
Marianne S. Kawano, Univ. Tecnológica Federal do Paraná (Brazil)
Ricardo Canute Kamikawachi, Univ. Tecnológica Federal do Paraná (Brazil)
José L. Fabris, Univ. Tecnológica Federal do Paraná (Brazil)
Marcia Müller, Univ. Tecnológica Federal do Paraná (Brazil)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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