A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges

Mediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flex...

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Autores principales:	Zichuang Li, Lei Liang, Hui Wang, Shu Dai, Ke Jiang, Zhiyuan Song
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fiber Bragg grating accelerometer flexible hinge vibration monitoring Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/12b638cbd2b24cb2aadee7de33392458
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spelling	oai:doaj.org-article:12b638cbd2b24cb2aadee7de333924582021-11-11T19:01:02ZA Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges10.3390/s212169681424-8220https://doaj.org/article/12b638cbd2b24cb2aadee7de333924582021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/6968https://doaj.org/toc/1424-8220Mediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flexible hinges, is proposed in this paper. The differential structure doubles the sensitivity of the sensor while avoiding temperature effects. The structure model and principle for the sensor are introduced, the sensor’s sensing characteristics are theoretically analyzed, and the structure parameters for the sensor are determined through numerical analysis. The sensing experiments show that the resonance frequency of the sensor is approximately 2800 Hz, the sensitivity is 21.8 pm/g in the flat frequency range of 50–1000 Hz, and the proposed sensor has a good temperature self-compensation function and lateral anti-interference capability.Zichuang LiLei LiangHui WangShu DaiKe JiangZhiyuan SongMDPI AGarticlefiber Bragg gratingaccelerometerflexible hingevibration monitoringChemical technologyTP1-1185ENSensors, Vol 21, Iss 6968, p 6968 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fiber Bragg grating accelerometer flexible hinge vibration monitoring Chemical technology TP1-1185
spellingShingle	fiber Bragg grating accelerometer flexible hinge vibration monitoring Chemical technology TP1-1185 Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
description	Mediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flexible hinges, is proposed in this paper. The differential structure doubles the sensitivity of the sensor while avoiding temperature effects. The structure model and principle for the sensor are introduced, the sensor’s sensing characteristics are theoretically analyzed, and the structure parameters for the sensor are determined through numerical analysis. The sensing experiments show that the resonance frequency of the sensor is approximately 2800 Hz, the sensitivity is 21.8 pm/g in the flat frequency range of 50–1000 Hz, and the proposed sensor has a good temperature self-compensation function and lateral anti-interference capability.
format	article
author	Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song
author_facet	Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song
author_sort	Zichuang Li
title	A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
title_short	A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
title_full	A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
title_fullStr	A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
title_full_unstemmed	A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
title_sort	medium-frequency fiber bragg grating accelerometer based on flexible hinges
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/12b638cbd2b24cb2aadee7de33392458
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A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges

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