Tailoring fiber grating sensors for assessment of highly refractive fuels |
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| Authors: | Kawano Marianne Sumie Heidemann Bárbara Rutyna Cardoso Tárik Kaiel Machado Possetti Gustavo Rafael Collere Kamikawachi Ricardo Canute Muller Marcia Fabris José Luís |
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| Affiliation: | Federal University of Technology-Paraná, Curitiba, Brazil. ms.kawano@gmail.com |
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| Abstract: | Three approaches that allow the tailoring of long period gratings based refractometric sensors for concentration measurement in fuel blends are employed to assess the fuel quality in biodiesel and biodiesel-petrodiesel blend. To allow the analysis of fuel samples with refractive index higher than fiber cladding one, the samples refractive indices were changed by thermo-optic effect and by dilution in a standard substance with low refractive index. The obtained results show the sensor can detect oil concentration in biodiesel samples with resolution as better as 0.07% and biodiesel concentration in biodiesel-petrodiesel samples with average resolution of 0.09%. |
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