Title :
Assessment of biodiesel-diesel blends with an optical fiber grating sensor
Author :
Heidemann, Bárbara Rutyna ; Possetti, Gustavo Rafael Collere ; Côcco, Lílian Cristina ; Yamamoto, Carlos Itsuo ; Muller, Marcia ; Fabris, José Luís
Author_Institution :
Programa de Pos-Grad. em Eng. Eletr. e Inf. Ind., Univ. Tecnol. Fed. do Parana, Curitiba, Brazil
fDate :
Oct. 29 2011-Nov. 1 2011
Abstract :
This work shows a method based on intrinsic optical fiber sensor for evaluating biodiesel-diesel blends. A long-period grating refractometric sensor was used to detect the biodiesel volumetric concentration in biodiesel-diesel blends. For this, all biodiesel-diesel samples were diluted in cyclohexane in both 1:1 and 1:2 proportions. The following metrological characteristics were obtained: calibration curve, sensibility curve, resolution curve, conformity, repeatability, reproducibility, combined standard uncertainty and expanded uncertainty. The expanded uncertainties obtained for confidence level of 95.45 % were 3.66 % v/v and 5.94% v/v for 1:1 and 1:2 proportions, respectively.
Keywords :
Bragg gratings; biofuel; calibration; chemical sensors; fibre optic sensors; measurement uncertainty; refractive index measurement; refractometers; biodiesel volumetric concentration; biodiesel-diesel blends; calibration curve; combined standard uncertainty; confidence level; conformity; cyclohexane; expanded uncertainty; long-period grating refractometric sensor; metrological characteristics; optical fiber grating sensor; repeatability; reproducibility; sensibility curve; were resolution curve; Biofuels; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; Uncertainty; Wavelength measurement; Optical fiber sensor; biodiesel-diesel blends; long-period grating refractometric sensor;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169226
