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Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber

A simple structure and easily fabricated displacement sensor was proposed and demonstrated based on a bending-induced fiber interferometer. In the design, the fiber interferometer was formed only by bending the single-mode fiber into a small U-shape without splicing, tapering, or heating pre-process...

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Detalles Bibliográficos
Autores principales: Teng, Chuanxin, Yu, Fangda, Deng, Shijie, Liu, Houquan, Yuan, Libo, Zheng, Jie, Deng, Hongchang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6603722/
https://www.ncbi.nlm.nih.gov/pubmed/31163590
http://dx.doi.org/10.3390/s19112531
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author Teng, Chuanxin
Yu, Fangda
Deng, Shijie
Liu, Houquan
Yuan, Libo
Zheng, Jie
Deng, Hongchang
author_facet Teng, Chuanxin
Yu, Fangda
Deng, Shijie
Liu, Houquan
Yuan, Libo
Zheng, Jie
Deng, Hongchang
author_sort Teng, Chuanxin
collection PubMed
description A simple structure and easily fabricated displacement sensor was proposed and demonstrated based on a bending-induced fiber interferometer. In the design, the fiber interferometer was formed only by bending the single-mode fiber into a small U-shape without splicing, tapering, or heating pre-processing, which effectively reduces the complexity of the fabrication process, greatly enhances the mechanical strength of the sensor, and lowers the cost in the displacement sensing applications. The displacement sensing performances for the sensor with different bending radii of 3.3 mm, 4.4 mm, 5.0 mm, and 6.3 mm were investigated. Experimental results showed that the sensor had a good linear response, and for the bending radii of 3.3, 4.4, 5.0, and 6.3 mm, the proposed sensors showed high sensitivities of 134.3, 105.1, 120.9, and 144.1 pm/μm, respectively.
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spelling pubmed-66037222019-07-17 Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber Teng, Chuanxin Yu, Fangda Deng, Shijie Liu, Houquan Yuan, Libo Zheng, Jie Deng, Hongchang Sensors (Basel) Article A simple structure and easily fabricated displacement sensor was proposed and demonstrated based on a bending-induced fiber interferometer. In the design, the fiber interferometer was formed only by bending the single-mode fiber into a small U-shape without splicing, tapering, or heating pre-processing, which effectively reduces the complexity of the fabrication process, greatly enhances the mechanical strength of the sensor, and lowers the cost in the displacement sensing applications. The displacement sensing performances for the sensor with different bending radii of 3.3 mm, 4.4 mm, 5.0 mm, and 6.3 mm were investigated. Experimental results showed that the sensor had a good linear response, and for the bending radii of 3.3, 4.4, 5.0, and 6.3 mm, the proposed sensors showed high sensitivities of 134.3, 105.1, 120.9, and 144.1 pm/μm, respectively. MDPI 2019-06-03 /pmc/articles/PMC6603722/ /pubmed/31163590 http://dx.doi.org/10.3390/s19112531 Text en © 2019 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
Teng, Chuanxin
Yu, Fangda
Deng, Shijie
Liu, Houquan
Yuan, Libo
Zheng, Jie
Deng, Hongchang
Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title_full Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title_fullStr Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title_full_unstemmed Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title_short Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber
title_sort displacement sensor based on a small u-shaped single-mode fiber
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6603722/
https://www.ncbi.nlm.nih.gov/pubmed/31163590
http://dx.doi.org/10.3390/s19112531
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