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A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection
A novel optical fiber array-type of sensing instrument with temperature compensation for real-time detection was developed to measure oxygen, carbon dioxide, and ammonia simultaneously. The proposed instrument is multi-sensing array integrated with real-time measurement module for portable applicati...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5191068/ https://www.ncbi.nlm.nih.gov/pubmed/27941636 http://dx.doi.org/10.3390/s16122087 |
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author | Hung, San-Shan Chang, Hsing-Cheng Chang, I-Nan |
author_facet | Hung, San-Shan Chang, Hsing-Cheng Chang, I-Nan |
author_sort | Hung, San-Shan |
collection | PubMed |
description | A novel optical fiber array-type of sensing instrument with temperature compensation for real-time detection was developed to measure oxygen, carbon dioxide, and ammonia simultaneously. The proposed instrument is multi-sensing array integrated with real-time measurement module for portable applications. The sensing optical fibers were etched and polished before coating to increase sensitivities. The ammonia and temperature sensors were each composed of a dye-coated single-mode fiber with constructing a fiber Bragg grating and a long-period filter grating for detecting light intensity. Both carbon dioxide and oxygen sensing structures use multimode fibers where 1-hydroxy-3,6,8-pyrene trisulfonic acid trisodium salt is coated for carbon dioxide sensing and Tris(2,2′-bipyridyl) dichlororuthenium(II) hexahydrate and Tris(bipyridine)ruthenium(II) chloride are coated for oxygen sensing. Gas-induced fluorescent light intensity variation was applied to detect gas concentration. The portable gas sensing array was set up by integrating with photo-electronic measurement modules and a human-machine interface to detect gases in real time. The measured data have been processed using piecewise-linear method. The sensitivity of the oxygen sensor were 1.54%/V and 9.62%/V for concentrations less than 1.5% and for concentrations between 1.5% and 6%, respectively. The sensitivity of the carbon dioxide sensor were 8.33%/V and 9.62%/V for concentrations less than 2% and for concentrations between 2% and 5%, respectively. For the ammonia sensor, the sensitivity was 27.78%/V, while ammonia concentration was less than 2%. |
format | Online Article Text |
id | pubmed-5191068 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-51910682017-01-03 A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection Hung, San-Shan Chang, Hsing-Cheng Chang, I-Nan Sensors (Basel) Article A novel optical fiber array-type of sensing instrument with temperature compensation for real-time detection was developed to measure oxygen, carbon dioxide, and ammonia simultaneously. The proposed instrument is multi-sensing array integrated with real-time measurement module for portable applications. The sensing optical fibers were etched and polished before coating to increase sensitivities. The ammonia and temperature sensors were each composed of a dye-coated single-mode fiber with constructing a fiber Bragg grating and a long-period filter grating for detecting light intensity. Both carbon dioxide and oxygen sensing structures use multimode fibers where 1-hydroxy-3,6,8-pyrene trisulfonic acid trisodium salt is coated for carbon dioxide sensing and Tris(2,2′-bipyridyl) dichlororuthenium(II) hexahydrate and Tris(bipyridine)ruthenium(II) chloride are coated for oxygen sensing. Gas-induced fluorescent light intensity variation was applied to detect gas concentration. The portable gas sensing array was set up by integrating with photo-electronic measurement modules and a human-machine interface to detect gases in real time. The measured data have been processed using piecewise-linear method. The sensitivity of the oxygen sensor were 1.54%/V and 9.62%/V for concentrations less than 1.5% and for concentrations between 1.5% and 6%, respectively. The sensitivity of the carbon dioxide sensor were 8.33%/V and 9.62%/V for concentrations less than 2% and for concentrations between 2% and 5%, respectively. For the ammonia sensor, the sensitivity was 27.78%/V, while ammonia concentration was less than 2%. MDPI 2016-12-08 /pmc/articles/PMC5191068/ /pubmed/27941636 http://dx.doi.org/10.3390/s16122087 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hung, San-Shan Chang, Hsing-Cheng Chang, I-Nan A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title | A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title_full | A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title_fullStr | A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title_full_unstemmed | A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title_short | A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection |
title_sort | portable array-type optical fiber sensing instrument for real-time gas detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5191068/ https://www.ncbi.nlm.nih.gov/pubmed/27941636 http://dx.doi.org/10.3390/s16122087 |
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