title: Tailoring fiber grating sensors for assessment of highly refractive fuels.
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%.
authors.affiliation: Federal University of Technology-Paraná, Curitiba, Brazil. ms.kawano@gmail.com
authors.forename: Marianne Sumie
authors.initials: MS
authors.lastname: Kawano
authors.forename: Bárbara Rutyna
authors.initials: BR
authors.lastname: Heidemann
authors.forename: Tárik Kaiel Machado
authors.initials: TK
authors.lastname: Cardoso
authors.forename: Gustavo Rafael Collere
authors.initials: GR
authors.lastname: Possetti
authors.forename: Ricardo Canute
authors.initials: RC
authors.lastname: Kamikawachi
authors.forename: Marcia
authors.initials: M
authors.lastname: Muller
authors.forename: José Luís
authors.initials: JL
authors.lastname: Fabris