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Sensors (Basel)

Title:		Optical Fiber Sensor for Monitoring the Evaporation of Ethanol-Water Mixtures
Author(s):		Pereira D; Bierlich J; Kobelke J; Pereira V; Ferreira MS;
Address:		"i3N & Department of Physics, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal. Leibniz Institute of Photonic Technology IPHT, Albert-Einstein-Str. 9, 07745 Jena, Germany. ISOPlexis-Sustainable Agriculture and Food Technology Center, University of Madeira, Campus da Penteada, 9020-105 Funchal, Portugal"
Journal Title:		Sensors (Basel)
Year:		2022
Volume:		20220723
Issue:		15
Page Number:		-
DOI:		10.3390/s22155498
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"An inline optical fiber sensor is proposed to monitor in real time the evaporation process of ethanol-water binary mixtures. The sensor presents two interferometers, a cladding modal interferometer (CMI) and a Mach-Zehnder interferometer (MZI). The CMI is used to acquire the variations in the external medium refractive index, presenting a maximum sensitivity of 387 nm/RIU, and to attain the variation in the sample concentration profile, while the MZI monitors temperature fluctuations. For comparison purposes, an image analysis is also conducted to obtain the droplet profile. The sensor proposed in this work is a promising alternative in applications where a rigorous measurement of volatile organic compound concentrations is required, and in the study of chemical and physical properties related to the evaporation process"
Keywords:		Mach-Zehnder interference binary mixture cladding modal interference ethanol concentration evaporation hollow square-core fiber;
Notes:		"PubMed-not-MEDLINEPereira, Diana Bierlich, Jorg Kobelke, Jens Pereira, Vanda Ferreira, Marta S eng PTDC/EEI-EEE/31568/2017/Fundacao para a Ciencia e Tecnologia/ UIDB/50025/2020/Fundacao para a Ciencia e Tecnologia/ UIDP/50025/2020/Fundacao para a Ciencia e Tecnologia/ CENTRO-01-0145-FEDER-031568/CENTRO2020/ M1420-09-5369-FSE-000001/Agencia Regional para o Desenvolvimento da Investigacao Tecnologia e Inovacao/ 57518590/Fundacao para a Ciencia e Tecnologia/ 57518590/German Academic Exchange Service/ FKZ: 03RU1U071J/Federal Ministry of Education and Research/ Switzerland 2022/07/29 Sensors (Basel). 2022 Jul 23; 22(15):5498. doi: 10.3390/s22155498"