用于管道变形监测的飞秒光纤光栅高灵敏度应变传感器

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

IEEE Sensors Journal Pub Date : 2025-03-27 DOI:10.1109/JSEN.2025.3551731

Yongjian Gong;Yongxing Guo;Li Xiong;Chang Liu;Wanhuan Zhou;Zhongchun Hu;Xiudong Li;Yu Zhang

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引用次数: 0

摘要

液压管道结构健康监测（SHM）在防止灾难性失效，特别是在测量高灵敏度大应变时起着至关重要的作用。本文提出了一种利用飞秒光纤布拉格光栅（FS-FBG）技术的新型高灵敏度应变传感器，以克服传统监测技术在极端条件下的局限性。该传感器包含两个关键组件：传感和测量成员，具有创新的骨架化敏化轴设计。预应力FS-FBG在结构内轴向悬挂。利用伯努利-欧拉光束理论和有限元分析方法验证了光纤光栅波长位移与管道表面应变之间的关系。为了准确标定传感器的性能，设计了精密管道变形装置。实验结果表明，该传感器在管道表面微应变0 ～ $1650~\mu \varepsilon $范围内的灵敏度为4.19 pm/ $\mu \varepsilon $，是光纤光栅传感器的3.4倍，同时具有良好的线性度、抗蠕变性能和温度补偿效果。研究结果为液压管路在恶劣工况下的大应变监测提供了可靠的解决方案。

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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A High-Sensitivity Strain Sensor With Femtosecond Fiber Bragg Grating for Pipeline Deformation Monitoring

Structural health monitoring (SHM) of hydraulic pipelines plays a crucial role in preventing catastrophic failures, particularly when measuring large strains with high sensitivity. This study presents a novel high-sensitivity strain sensor utilizing femtosecond fiber Bragg grating (FS-FBG) technology to overcome the limitations of conventional monitoring techniques in extreme conditions. The sensor incorporates two key components: sensing and measuring members, featuring an innovative skeletonized sensitized shaft design. A pre-stressed FS-FBG is suspended axially within the structure. The relationship between fiber Bragg grating (FBG) wavelength displacement and pipe surface strain was validated using Bernoulli-Euler beam theory and finite element analysis. In order to accurately calibrate the performance of the sensor, a precision pipe deformation device was designed. Experimental results demonstrate that the sensor achieves a sensitivity of 4.19 pm/

$\mu \varepsilon $

, which is 3.4 times higher than that of the FBG sensor, in the range of 0–

$1650~\mu \varepsilon $

of the pipe surface microstrain, and at the same time, it has excellent linearity, creep-resistant performance, and temperature compensation effect. The results provide a reliable solution for large strain monitoring of hydraulic pipelines under severe conditions.

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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