Belt conveyor speed detection based on fiber-optic Sagnac interferometer vibration sensor

IF 1.2 4区 物理与天体物理 Q4 OPTICS
Yaru Hou, Pingjuan Niu, Jia Shi, Yuan Xie, Mengyu Yang
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引用次数: 0

Abstract

With their long transportation distance and high productivity, belt conveyors are characterized as the main equipment for bulk material transportation in coal mines and other key industries. However, its speed detection method has always been an engineering challenge under harsh working conditions. In this work, the elastic-optical effect of the polarization-maintaining fiber is used to design a fiber ring laser vibration sensing system based on a fiber-optic Sagnac interferometer vibration sensor and its packaging structure. The vibration detection is achieved by detecting the change in optical power at the working wavelength, and the belt conveyor speed measurement is completed by detecting the vibration frequency. With such a method, the belt conveyor speed measurement obtained a relative error of less than 1.88%. The proposed method bears the characteristics of anti-electromagnetic interference, intrinsic explosion-proof, and adapts to the harsh smoke and dust working environment, which has a wide range of application prospects in the fields of engineering, machinery, security, etc.
基于光纤萨格纳克干涉仪振动传感器的皮带输送机速度检测系统
带式输送机运输距离长、生产效率高,是煤矿和其他重点行业散装物料运输的主要设备。然而,在恶劣的工作条件下,其速度检测方法一直是一个工程难题。本研究利用偏振维持光纤的弹性光学效应,设计了一种基于光纤萨格纳克干涉仪振动传感器及其封装结构的光纤环形激光振动传感系统。振动检测是通过检测工作波长上的光功率变化来实现的,而皮带输送机的速度测量则是通过检测振动频率来完成的。通过这种方法,皮带输送机速度测量的相对误差小于 1.88%。所提出的方法具有抗电磁干扰、本质防爆、适应恶劣烟尘工作环境等特点,在工程、机械、安防等领域具有广泛的应用前景。
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来源期刊
Laser Physics
Laser Physics 物理-光学
CiteScore
2.60
自引率
8.30%
发文量
127
审稿时长
2.2 months
期刊介绍: Laser Physics offers a comprehensive view of theoretical and experimental laser research and applications. Articles cover every aspect of modern laser physics and quantum electronics, emphasizing physical effects in various media (solid, gaseous, liquid) leading to the generation of laser radiation; peculiarities of propagation of laser radiation; problems involving impact of laser radiation on various substances and the emerging physical effects, including coherent ones; the applied use of lasers and laser spectroscopy; the processing and storage of information; and more. The full list of subject areas covered is as follows: -physics of lasers- fibre optics and fibre lasers- quantum optics and quantum information science- ultrafast optics and strong-field physics- nonlinear optics- physics of cold trapped atoms- laser methods in chemistry, biology, medicine and ecology- laser spectroscopy- novel laser materials and lasers- optics of nanomaterials- interaction of laser radiation with matter- laser interaction with solids- photonics
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