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Review

A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects

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Optical Fibre Sensors Research Centre, University of Limerick, V94 T9PX Limerick, Ireland
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Department of Electronic and Computer Engineering, University of Limerick, V94 T9PX Limerick, Ireland
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Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
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NCRA-CMS Lab, IICT, Mehran University of Engineering and Technology, Jamshoro 76062, Sindh, Pakistan
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Department of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
*
Authors to whom correspondence should be addressed.
Academic Editor: Roberto Pizzoferrato
Sensors 2022, 22(3), 950; https://doi.org/10.3390/s22030950
Received: 10 December 2021 / Revised: 14 January 2022 / Accepted: 21 January 2022 / Published: 26 January 2022
(This article belongs to the Collection Optical Chemical Sensors: Design and Applications)
A range of optical fibre-based sensors for the measurement of ethanol, primarily in aqueous solution, have been developed and are reviewed here. The sensing approaches can be classified into four groups according to the measurement techniques used, namely absorption (or absorbance), external interferometric, internal fibre grating and plasmonic sensing. The sensors within these groupings can be compared in terms of their characteristic performance indicators, which include sensitivity, resolution and measurement range. Here, particular attention is paid to the potential application areas of these sensors as ethanol production is globally viewed as an important industrial activity. Potential industrial applications are highlighted in the context of the emergence of the internet of things (IoT), which is driving widespread utilization of these sensors in the commercially significant industrial and medical sectors. The review concludes with a summary of the current status and future prospects of optical fibre ethanol sensors for industrial use. View Full-Text
Keywords: ethanol sensing; optical fibre sensors; absorption-based sensors; interferometric sensors; fibre grating sensors; plasmonic sensors ethanol sensing; optical fibre sensors; absorption-based sensors; interferometric sensors; fibre grating sensors; plasmonic sensors
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MDPI and ACS Style

Memon, S.F.; Wang, R.; Strunz, B.; Chowdhry, B.S.; Pembroke, J.T.; Lewis, E. A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects. Sensors 2022, 22, 950. https://doi.org/10.3390/s22030950

AMA Style

Memon SF, Wang R, Strunz B, Chowdhry BS, Pembroke JT, Lewis E. A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects. Sensors. 2022; 22(3):950. https://doi.org/10.3390/s22030950

Chicago/Turabian Style

Memon, Sanober F., Ruoning Wang, Bob Strunz, Bhawani S. Chowdhry, J. T. Pembroke, and Elfed Lewis. 2022. "A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects" Sensors 22, no. 3: 950. https://doi.org/10.3390/s22030950

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