Performance Analysis of High-Temperature Flexible Dual-Coil EMAT for Ferromagnetic Steel Measurement

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Sensors Journal Pub Date : 2024-10-07 DOI:10.1109/JSEN.2024.3471814

Bao Liang;Weige Tao;Cailing Huo;Zhigang Sun

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Abstract

The electromagnetic acoustic transducer (EMAT), which uses a flexible dual-coil configuration, can be easily applied for noncontact ultrasonic testing of curved structures and objects with narrow inspection space. In this article, the high-temperature performance of a flexible dual-coil EMAT on ferromagnetic steel measurement is analyzed. The flexible dual-coil EMAT consists of an electromagnetic (EM) coil, an eddy-current (EC) coil, and a test specimen. First, the working principle and transduction mechanism in ferromagnetic steel by the designed dual-coil EMAT are analyzed. Then, a finite element model of the designed dual-coil EMAT is established, and the magnetic field and acoustic field distribution of the EM coil are simulated. Finally, a high-temperature experimental platform of flexible dual-coil EMAT is built, and the relationship between the designed EMAT’s received signal waveform and the temperature is analyzed. The results show that the designed EMAT allows the measurement of ferromagnetic steels between

$25~^{\circ }$

C and

$770~^{\circ }$

C without physical coupling or active cooling.

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用于铁磁钢测量的高温柔性双线圈 EMAT 性能分析

采用柔性双线圈结构的电磁声换能器（EMAT）可方便地用于对曲面结构和检测空间狭窄的物体进行非接触式超声波检测。本文分析了柔性双线圈 EMAT 在铁磁钢测量中的高温性能。柔性双线圈电磁超声探伤仪由电磁（EM）线圈、涡流（EC）线圈和试样组成。首先，分析了所设计的双线圈电磁传感器在铁磁钢中的工作原理和传导机制。然后，建立了设计的双线圈电磁超声衰减器的有限元模型，并模拟了电磁线圈的磁场和声场分布。最后，建立了柔性双线圈电磁超声衰减器的高温实验平台，并分析了所设计的电磁超声衰减器接收信号波形与温度之间的关系。结果表明，所设计的电磁超声波探头可以在 25~^{\circ }$ C 和 770~^{\circ }$ C 之间测量铁磁性钢材，而无需物理耦合或主动冷却。

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

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