Cargando…
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...
Autores principales: | , , , , , , , , |
---|---|
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 |
_version_ | 1783267664392617984 |
---|---|
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. |
format | Online Article Text |
id | pubmed-5621000 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT zhangyang anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT wangfang anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT duanzhihui anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT liuzexu anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT liuzigeng anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT wuzhenlin anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT guyiying anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT sunchangsen anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT pengwei anovellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT zhangyang novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT wangfang novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT duanzhihui novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT liuzexu novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT liuzigeng novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT wuzhenlin novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT guyiying novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT sunchangsen novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign AT pengwei novellowpowerconsumptionallfiberopticanemometerwithsimplesystemdesign |