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

Abstract 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 micro...

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Autores principales:	George Y. Chen, Xuan Wu, Yvonne Qiongyue Kang, Li Yu, Tanya M. Monro, David G. Lancaster, Xiaokong Liu, Haolan Xu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/94ce015110c54aac96c53bf395f5b9aa
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spelling	oai:doaj.org-article:94ce015110c54aac96c53bf395f5b9aa2021-12-02T11:50:56ZUltra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating10.1038/s41598-017-08562-12045-2322https://doaj.org/article/94ce015110c54aac96c53bf395f5b9aa2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08562-1https://doaj.org/toc/2045-2322Abstract 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.George Y. ChenXuan WuYvonne Qiongyue KangLi YuTanya M. MonroDavid G. LancasterXiaokong LiuHaolan XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q George Y. Chen Xuan Wu Yvonne Qiongyue Kang Li Yu Tanya M. Monro David G. Lancaster Xiaokong Liu Haolan Xu Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating
description	Abstract 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.
format	article
author	George Y. Chen Xuan Wu Yvonne Qiongyue Kang Li Yu Tanya M. Monro David G. Lancaster Xiaokong Liu Haolan Xu
author_facet	George Y. Chen Xuan Wu Yvonne Qiongyue Kang Li Yu Tanya M. Monro David G. Lancaster Xiaokong Liu Haolan Xu
author_sort	George Y. Chen
title	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_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_sort	ultra-fast hygrometer based on u-shaped optical microfiber with nanoporous polyelectrolyte coating
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/94ce015110c54aac96c53bf395f5b9aa
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Ultra-fast Hygrometer based on U-shaped Optical Microfiber with Nanoporous Polyelectrolyte Coating

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