用于高温(≥600°C)环境无损监测的圆周径向磁化电磁声换能器

IF 4.3 2区 综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Siyu Wang;Peng Chen;Qin Chen;Fangji Gan
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引用次数: 0

摘要

在石油化工行业,工厂必须定期关闭进行维护,以保护人类生命和财产免受灾难性爆炸的影响。无损监测技术的引入使这一过程更加高效和经济。然而,在极端高温环境(${\ge} 600~^{\circ}$ C)下的无损监测仍然是一个挑战。电磁超声技术由于不需要偶联剂和允许起飞距离,在高温设备监测中具有显著的优势。然而,电磁声换能器(emat)的微弱信号幅度和较低的工作温度严重限制了其在恶劣高温环境中的应用。为了提高信号幅值,解决极端高温设备的监测问题,我们提出了一种圆周径向磁化EMAT (CRM-EMAT)。它由八个圆周径向磁化(CRM)扇形永磁体组成,包裹在圆柱形磁芯周围,并在该磁性组合的下表面附着一个坡莫合金贴片。通过三维数值模拟和室内实验,得到了各部分的最优尺寸,并证明该探头将信号幅度提高了6倍以上,并可稳定工作在600~ {\circ}$ c内。CRM-EMAT突破了emat的工作温度,以更低的功耗实现了更优的信号,从而加速了电磁超声技术的工业应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Circumferential Radially Magnetized Electromagnetic Acoustic Transducer for Nondestructive Monitoring in High-Temperature (≥600 °C) Environments
In the petrochemical industry, plants must be shut down regularly for maintenance to safeguard human lives and property from catastrophic explosions. The introduction of nondestructive monitoring technologies has made this process more efficient and economical. However, nondestructive monitoring in extreme heat environments ( ${\ge } 600~^{\circ }$ C) remains a challenge. Electromagnetic ultrasound technology has notable advantages in monitoring high-temperature equipment due to the absence of coupling agents and the allowance of lift-off distances. However, weak signal amplitudes and low operating temperatures of electromagnetic acoustic transducers (EMATs) severely limit their application in harsh high-temperature scenarios. To improve the signal amplitude and solve the problem of monitoring extreme heat equipment, we propose a circumferential radially magnetized EMAT (CRM-EMAT). It consists of eight circumferential radially magnetized (CRM) sector-shaped permanent magnets, wrapped around a cylindrical core, and a permalloy patch attached to the lower surface of this magnetic combination. Three-dimensional numerical simulations and laboratory experiments were carried out to obtain the optimal dimensions of each part and to demonstrate that the probe improves the signal amplitude by a factor of over 6 and can operate stably up to $600~^{\circ }$ C. The CRM-EMAT represents a breakthrough in the operation temperature of EMATs and realizes superior signals with lower power consumption, thus accelerating the industrial application of electromagnetic ultrasound technology.
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来源期刊
IEEE Sensors Journal
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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