A Long Period Grating Sensor Based on Microtaper Eccentric Core Fiber

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Journal Pub Date : 2024-11-04 DOI:10.1109/JSEN.2024.3487252

Xuelan He;Chuang Zhang;Liusong Yang;Wenchao Li;Jian Xing;Shuanglong Cui

引用次数: 0

Abstract

A long period fiber grating (LPFG) sensor based on microtaper eccentric core fiber (MTECF) for curvature/liquid-level sensing is proposed and demonstrated. The microtaper modulates the refractive index of the cladding and core of the fiber periodically, and forms a LPFG based on the eccentric fiber. Because the eccentric core of the fiber is off the axis of the fiber, bend and liquid-level measurements cause strong changes in the coupling energy between the cladding and the core, which makes the MTECF structure be suitable for liquid-level and vector curvature measurements. Experimental results show that the bending sensitivities of the sensor are 15.35 and –14.76 nm/m−1 at the bending directions of 0° and 180°, respectively, and the liquid-level sensitivity is 6580pm/mm. The temperature crosstalk of bend and liquid level are 0.012 m−1/°C and 0.0028 mm/°C, respectively.

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基于微锥偏心芯光纤的长周期光栅传感器

本文提出并演示了一种基于微锥偏心纤芯光纤（MTECF）的长周期光纤光栅（LPFG）传感器，用于曲率/液面传感。微锥定期调节光纤包层和纤芯的折射率，并在偏心光纤的基础上形成 LPFG。由于偏心纤芯偏离光纤轴线，弯曲和液面测量会引起包层和纤芯之间耦合能量的强烈变化，这使得 MTECF 结构适用于液面和矢量曲率测量。实验结果表明，在 0° 和 180° 的弯曲方向上，传感器的弯曲灵敏度分别为 15.35 nm/m-1 和 -14.76 nm/m-1，液面灵敏度为 6580pm/mm。弯曲和液位的温度串扰分别为 0.012 m-1/°C 和 0.0028 mm/°C。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Sensors Journal 工程技术-工程：电子与电气

CiteScore

7.70

自引率

14.00%

发文量

2058

审稿时长

5.2 months

期刊介绍： The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice