基于光纤光栅的波纹管孔压传感器

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

IEEE Sensors Journal Pub Date : 2024-12-30 DOI:10.1109/JSEN.2024.3521011

W. A. F. W. Burhanuddin;Harith Ahmad;M. S. M. Sa’Ad;M. A. Alias;M. F. Ismail

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引用次数: 0

摘要

本研究介绍了一种基于光纤布拉格光栅（FBG）的岩土工程钻孔孔压传感器的设计、制造和性能评估。该传感器包括一个圆柱形体，3d打印，由聚乳酸（PLA）材料制成，直径40毫米，长度155毫米。承载FBG的换能器采用方形波纹管设计，利用热塑性聚氨酯（TPU）材料的良好灵活性进行3d打印。该传感器位于圆柱形外壳内，可以有效地进行孔隙压力测量。两个FBG分别用于测量孔隙压力和温度，分别为FBG P和FBG T。实验结果表明，FBG P的压力灵敏度为1.224 pm/kPa，线性度为99.41%。此外，实验结果还证明了FBG T在孔隙压力测量中对FBG P进行温度补偿的有效性。这种创新的传感器设计为岩土工程应用中的孔隙压力测量提供了一种紧凑、通用的解决方案，结合了FBG技术和3d打印功能的优势。

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Fiber Bragg Grating (FBG)-Based Pore Pressure Sensor Utilizing Bellows System

This study presents the design, fabrication, and performance evaluation of an optical fiber Bragg grating (FBG)-based pore pressure sensor for geotechnical borehole applications. The sensor comprises a cylindrical body, 3-D, printed from polylactic acid (PLA) material, with dimensions of 40 mm in diameter and 155 mm in length. The transducer holding the FBG utilizes a square bellows design and was 3-D printed using thermoplastic polyurethane (TPU) material, taking advantage of its good flexibility. This transducer was positioned inside a cylindrical housing to allow pore pressure measurement to take place effectively. Two FBGs, denoted FBG P and FBG T, were used to measure pore pressure and temperature, respectively. The experimental results demonstrate a pressure sensitivity of 1.224 pm/kPa for FBG P with a linearity of 99.41%. Besides that, the results also demonstrate FBG T’s effectiveness in giving temperature compensation to FBG P during pore pressure measurement. This innovative sensor design offers a compact and versatile solution for pore pressure measurement in geotechnical applications, combining the benefits of FBG technology with 3-D printing capabilities.

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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