Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor

The refractometric analysis of ethanol-water mixtures is hampered because this type of binary solution does not present a linear behaviour. In this work it is proposed a multimode Graded-Index Fiber (GIF) tip sensor for the measurement of ethanol in binary liquid solutions of ethanol-water. The prob...

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Main Authors: Soares Liliana, Cunha Cristina, Novais Susana, Ferreira António, Frazão Orlando, Silva and Susana
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09038.pdf
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author Soares Liliana
Cunha Cristina
Novais Susana
Ferreira António
Frazão Orlando
Silva and Susana
author_facet Soares Liliana
Cunha Cristina
Novais Susana
Ferreira António
Frazão Orlando
Silva and Susana
author_sort Soares Liliana
collection DOAJ
description The refractometric analysis of ethanol-water mixtures is hampered because this type of binary solution does not present a linear behaviour. In this work it is proposed a multimode Graded-Index Fiber (GIF) tip sensor for the measurement of ethanol in binary liquid solutions of ethanol-water. The probe is fabricated by fusion-splicing a 500 µm GIF to a Single Mode Fiber (SMF) and it operates as a refractometric sensor in reflection. Samples of ethanol-water mixtures were measured at different temperatures (20°C to 60°C) to evaluate the probe’s capability to detect variations in ethanol refractive index. The samples have different % (v/v) of ethanol, in a range between 0% and 100%.
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spelling doaj.art-692f50802f0b49cbb90ddcd3d21593ec2023-11-07T10:20:48ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012870903810.1051/epjconf/202328709038epjconf_eosam2023_09038Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensorSoares Liliana0Cunha Cristina1Novais Susana2Ferreira António3Frazão Orlando4Silva and Susana5INESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceLEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, Department of Chemical Engineering, Faculty of Engineering, University of PortoINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceINESC TEC – Institute for Systems and Computer Engineering, Technology and ScienceThe refractometric analysis of ethanol-water mixtures is hampered because this type of binary solution does not present a linear behaviour. In this work it is proposed a multimode Graded-Index Fiber (GIF) tip sensor for the measurement of ethanol in binary liquid solutions of ethanol-water. The probe is fabricated by fusion-splicing a 500 µm GIF to a Single Mode Fiber (SMF) and it operates as a refractometric sensor in reflection. Samples of ethanol-water mixtures were measured at different temperatures (20°C to 60°C) to evaluate the probe’s capability to detect variations in ethanol refractive index. The samples have different % (v/v) of ethanol, in a range between 0% and 100%.https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09038.pdf
spellingShingle Soares Liliana
Cunha Cristina
Novais Susana
Ferreira António
Frazão Orlando
Silva and Susana
Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
EPJ Web of Conferences
title Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
title_full Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
title_fullStr Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
title_full_unstemmed Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
title_short Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor
title_sort refractive index measurements of ethanol water binary liquid solutions using a graded index fiber tip sensor
url https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_09038.pdf
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AT novaissusana refractiveindexmeasurementsofethanolwaterbinaryliquidsolutionsusingagradedindexfibertipsensor
AT ferreiraantonio refractiveindexmeasurementsofethanolwaterbinaryliquidsolutionsusingagradedindexfibertipsensor
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