Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating

Real-time measurement of the relative humidity of air has applications ranging from process control to safety. By using a microfiber form-factor, we demonstrate a miniature and fast-response hygrometer with the shortest-ever response time (3 ms). The sensor head consists of an optical microfiber of...

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Autores principales: Chen, George Y., Wu, Xuan, Kang, Yvonne Qiongyue, Yu, Li, Monro, Tanya M., Lancaster, David G., Liu, Xiaokong, Xu, Haolan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5554257/
https://www.ncbi.nlm.nih.gov/pubmed/28801678
http://dx.doi.org/10.1038/s41598-017-08562-1
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author Chen, George Y.
Wu, Xuan
Kang, Yvonne Qiongyue
Yu, Li
Monro, Tanya M.
Lancaster, David G.
Liu, Xiaokong
Xu, Haolan
author_facet Chen, George Y.
Wu, Xuan
Kang, Yvonne Qiongyue
Yu, Li
Monro, Tanya M.
Lancaster, David G.
Liu, Xiaokong
Xu, Haolan
author_sort Chen, George Y.
collection PubMed
description Real-time measurement of the relative humidity of air has applications ranging from process control to safety. By using a microfiber form-factor, we demonstrate a miniature and fast-response hygrometer with the shortest-ever response time (3 ms). The sensor head consists of an optical microfiber of 10 µm diameter and 2 mm length configured to form a compact U-shaped probe, and functionalized with a polyelectrolyte multilayer coating of 1.0 bilayer. The sensing mechanism is primarily water-absorption-based optical loss. We have measured a response time of 3 ms and a recovery time of 36 ms. The sensitivity is as high as 0.4%/%RH, and the detection limit is as low as 1.6%RH. The maximum relative humidity is 99%RH, before reaching a recoverable dew-point.
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spelling pubmed-55542572017-08-15 Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating Chen, George Y. Wu, Xuan Kang, Yvonne Qiongyue Yu, Li Monro, Tanya M. Lancaster, David G. Liu, Xiaokong Xu, Haolan Sci Rep Article Real-time measurement of the relative humidity of air has applications ranging from process control to safety. By using a microfiber form-factor, we demonstrate a miniature and fast-response hygrometer with the shortest-ever response time (3 ms). The sensor head consists of an optical microfiber of 10 µm diameter and 2 mm length configured to form a compact U-shaped probe, and functionalized with a polyelectrolyte multilayer coating of 1.0 bilayer. The sensing mechanism is primarily water-absorption-based optical loss. We have measured a response time of 3 ms and a recovery time of 36 ms. The sensitivity is as high as 0.4%/%RH, and the detection limit is as low as 1.6%RH. The maximum relative humidity is 99%RH, before reaching a recoverable dew-point. Nature Publishing Group UK 2017-08-11 /pmc/articles/PMC5554257/ /pubmed/28801678 http://dx.doi.org/10.1038/s41598-017-08562-1 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Chen, George Y.
Wu, Xuan
Kang, Yvonne Qiongyue
Yu, Li
Monro, Tanya M.
Lancaster, David G.
Liu, Xiaokong
Xu, Haolan
Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title_full Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title_fullStr Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title_full_unstemmed Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title_short Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
title_sort ultra-fast hygrometer based on u-shaped optical microfiber with nanoporous polyelectrolyte coating
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5554257/
https://www.ncbi.nlm.nih.gov/pubmed/28801678
http://dx.doi.org/10.1038/s41598-017-08562-1
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