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Proceedings Paper

Etched fiber Bragg grating sensing system thermically assisted for analysis of water- ethanol mixtures
Author(s): F. K. Coradin; G. R. C. Possetti; R. C. Kamikawachi; M. Muller; J. L. Fabris
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Paper Abstract

This work presents a sensing system based on an etched fiber Bragg grating, applied to the refractometric analysis of water-ethanol mixtures. The system configuration employs one etched-FBG operating at two temperatures, (20.0 ± 0.5) °C and (3.0 ± 0.5) °C. The sensing system performance in measuring the ethanol-water proportions is evaluated in the concentration range between 0.0 and 100.0 % v/v of water in ethanol, resulting in uncertainties less than 3.9 % v/v. The sensor capability to determine the ethanol concentration is shown, even for the range of concentrations where the correlation between refractive index and ethanol proportion in the sample presents an ambiguous behavior.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77537X (18 May 2011); doi: 10.1117/12.885088
Show Author Affiliations
F. K. Coradin, Federal Univ. of Technology (Brazil)
G. R. C. Possetti, Federal Univ. of Technology (Brazil)
R. C. Kamikawachi, Federal Univ. of Technology (Brazil)
M. Muller, Federal Univ. of Technology (Brazil)
J. L. Fabris, Federal Univ. of Technology (Brazil)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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