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A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design

A compact and low-power consuming fiber-optic anemometer based on single-walled carbon nanotubes (SWCNTs) coated tilted fiber Bragg grating (TFBG) is presented. TFBG as a near infrared in-fiber sensing element is able to excite a number of cladding modes and radiation modes in the fiber and effectiv...

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Detalles Bibliográficos
Autores principales: Zhang, Yang, Wang, Fang, Duan, Zhihui, Liu, Zexu, Liu, Zigeng, Wu, Zhenlin, Gu, Yiying, Sun, Changsen, Peng, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5621000/
https://www.ncbi.nlm.nih.gov/pubmed/28906446
http://dx.doi.org/10.3390/s17092107
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author Zhang, Yang
Wang, Fang
Duan, Zhihui
Liu, Zexu
Liu, Zigeng
Wu, Zhenlin
Gu, Yiying
Sun, Changsen
Peng, Wei
author_facet Zhang, Yang
Wang, Fang
Duan, Zhihui
Liu, Zexu
Liu, Zigeng
Wu, Zhenlin
Gu, Yiying
Sun, Changsen
Peng, Wei
author_sort Zhang, Yang
collection PubMed
description A compact and low-power consuming fiber-optic anemometer based on single-walled carbon nanotubes (SWCNTs) coated tilted fiber Bragg grating (TFBG) is presented. TFBG as a near infrared in-fiber sensing element is able to excite a number of cladding modes and radiation modes in the fiber and effectively couple light in the core to interact with the fiber surrounding mediums. It is an ideal in-fiber device used in a fiber hot-wire anemometer (HWA) as both coupling and sensing elements to simplify the sensing head structure. The fabricated TFBG was immobilized with an SWCNT film on the fiber surface. SWCNTs, a kind of innovative nanomaterial, were utilized as light-heat conversion medium instead of traditional metallic materials, due to its excellent infrared light absorption ability and competitive thermal conductivity. When the SWCNT film strongly absorbs the light in the fiber, the sensor head can be heated and form a “hot wire”. As the sensor is put into wind field, the wind will take away the heat on the sensor resulting in a temperature variation that is then accurately measured by the TFBG. Benefited from the high coupling and absorption efficiency, the heating and sensing light source was shared with only one broadband light source (BBS) without any extra pumping laser complicating the system. This not only significantly reduces power consumption, but also simplifies the whole sensing system with lower cost. In experiments, the key parameters of the sensor, such as the film thickness and the inherent angle of the TFBG, were fully investigated. It was demonstrated that, under a very low BBS input power of 9.87 mW, a 0.100 nm wavelength response can still be detected as the wind speed changed from 0 to 2 m/s. In addition, the sensitivity was found to be −0.0346 nm/(m/s) under the wind speed of 1 m/s. The proposed simple and low-power-consumption wind speed sensing system exhibits promising potential for future long-term remote monitoring and on-chip sensing in practical applications.
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spelling pubmed-56210002017-10-03 A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design Zhang, Yang Wang, Fang Duan, Zhihui Liu, Zexu Liu, Zigeng Wu, Zhenlin Gu, Yiying Sun, Changsen Peng, Wei Sensors (Basel) Article A compact and low-power consuming fiber-optic anemometer based on single-walled carbon nanotubes (SWCNTs) coated tilted fiber Bragg grating (TFBG) is presented. TFBG as a near infrared in-fiber sensing element is able to excite a number of cladding modes and radiation modes in the fiber and effectively couple light in the core to interact with the fiber surrounding mediums. It is an ideal in-fiber device used in a fiber hot-wire anemometer (HWA) as both coupling and sensing elements to simplify the sensing head structure. The fabricated TFBG was immobilized with an SWCNT film on the fiber surface. SWCNTs, a kind of innovative nanomaterial, were utilized as light-heat conversion medium instead of traditional metallic materials, due to its excellent infrared light absorption ability and competitive thermal conductivity. When the SWCNT film strongly absorbs the light in the fiber, the sensor head can be heated and form a “hot wire”. As the sensor is put into wind field, the wind will take away the heat on the sensor resulting in a temperature variation that is then accurately measured by the TFBG. Benefited from the high coupling and absorption efficiency, the heating and sensing light source was shared with only one broadband light source (BBS) without any extra pumping laser complicating the system. This not only significantly reduces power consumption, but also simplifies the whole sensing system with lower cost. In experiments, the key parameters of the sensor, such as the film thickness and the inherent angle of the TFBG, were fully investigated. It was demonstrated that, under a very low BBS input power of 9.87 mW, a 0.100 nm wavelength response can still be detected as the wind speed changed from 0 to 2 m/s. In addition, the sensitivity was found to be −0.0346 nm/(m/s) under the wind speed of 1 m/s. The proposed simple and low-power-consumption wind speed sensing system exhibits promising potential for future long-term remote monitoring and on-chip sensing in practical applications. MDPI 2017-09-14 /pmc/articles/PMC5621000/ /pubmed/28906446 http://dx.doi.org/10.3390/s17092107 Text en © 2017 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
Zhang, Yang
Wang, Fang
Duan, Zhihui
Liu, Zexu
Liu, Zigeng
Wu, Zhenlin
Gu, Yiying
Sun, Changsen
Peng, Wei
A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title_full A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title_fullStr A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title_full_unstemmed A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title_short A Novel Low-Power-Consumption All-Fiber-Optic Anemometer with Simple System Design
title_sort novel low-power-consumption all-fiber-optic anemometer with simple system design
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5621000/
https://www.ncbi.nlm.nih.gov/pubmed/28906446
http://dx.doi.org/10.3390/s17092107
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