Gasoline Quality Sensor Based on Tilted Fiber Bragg Gratings

Autor(es)

Aristilde, Stenio ^[1] ; Cordeiro, Cristiano M. B. ^[1] ; Osorio, Jonas H. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHOTONICS; v. 6, n. 2 JUN 2019.
• Citações Web of Science: 0

Resumo

We report on the study of an intensity-based optical fiber sensor for gasoline quality monitoring. The sensor setup employs two Bragg gratings with different spectral responses to interrogate the optical response of a tilted Bragg grating. The sensor operation is based on the tilted Bragg grating sensitivity to external refractive index changes, which are translated as power variations by the interrogation scheme. Gasoline-ethanol solutions with concentrations ranging from 0% to 60% ethanol were used to demonstrate the sensor performance. The results allowed to estimate that the sensor is able, within its resolution limit, to detect ethanol concentration variations of 1.5% in gasoline-ethanol solutions and discriminate temperature variations of 0.5 degrees C. The all-optical sensor setup is compact and robust, making it a competitive alternative for the realization of fuel quality analyses in practical applications. (AU)

• Processo FAPESP: 14/50632-6 - Sensores baseados em ressonância de plasmon e fibras ópticas microestruturadas
• Beneficiário: Cristiano Monteiro de Barros Cordeiro
• Modalidade de apoio: Auxílio à Pesquisa - Regular