Title :
Refractometric optical fiber sensor for measurement of ethanol concentration in ethanol-gasoline blend
Author :
Possetti, Gustavo Rafael Collere ; Muller, Marcia ; Fabris, José Luis
Author_Institution :
Programa de Pos-Grad. em Eng. Eletr. e Inf. Ind. - CPGEI, Univ. Tecnol. Fed. do Parana - UTFPR, Curitiba, Brazil
Abstract :
In this paper, an optical fiber device based on long period grating is applied as refractive index transducer to measure the ethanol concentration in ethanol-gasoline blends. The device metrological characteristics - response curve, sensitivity, resolution, conformity, repeatability, combined uncertainty and expanded uncertainty - were determined and compared with characteristics associated with an Abbe refractometer. For ethanol concentration ranging from 20% to 40%, the LPG combined uncertainty was 0.70% and the expanded uncertainty was 1.70 %.
Keywords :
chemical sensors; chemical variables measurement; fibre optic sensors; organic compounds; refractive index measurement; refractometers; Abbe refractometer; conformity; ethanol concentration measurement; ethanol-gasoline blend; period grating; refractive index transducer; refractometric optical fiber sensor; repeatability; resolution; response curve; sensitivity; Ethanol; Network topology; Optical buffering; Optical fiber networks; Optical fiber sensors; Optical packet switching; Optical refraction; Telecommunication traffic; Throughput; Traffic control; ethanol-gasoline mixture; long period grating; optical fiber sensor; refractive index measurement;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427510
