Simulation Study on Thickness Measurement Characteristics of Pipeline Axial Shear Wave based on EMAT

2021 3rd International Conference on Intelligent Control, Measurement and Signal Processing and Intelligent Oil Field (ICMSP) Pub Date : 2021-07-23 DOI:10.1109/ICMSP53480.2021.9513404

Guo-wang Gao, Wei Yang, Yulong Qu, Le Hua, Dongliang Zhao, Runsen Bai

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引用次数: 1

Abstract

Electromagnetic ultrasonic thickness measurement is a non-contact measurement of pipe wall thickness by receiving ultrasonic signals generated by electromagnetic excitation coupling. By analyzing the working mechanism of electromagnetic ultrasonic, the simulation model of electromagnetic ultrasonic thickness measurement is constructed by using Comsol Multiphysics multi-physics simulation software. The static magnetic field distribution produced by permanent magnet and the distribution and main characteristics of magnetic field, electric field and sound field in the process of electromagnetic ultrasonic transducer energy conversion are analyzed. The propagation process of electromagnetic ultrasonic shear wave in pipeline non-planar specimens is studied. The simulation results show that the electromagnetic ultrasonic shear wave thickness measurement performance is excellent, and the measurement accuracy can reach 0.001 mm.

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基于EMAT的管道轴向横波测厚特性仿真研究

电磁超声测厚是通过接收电磁激励耦合产生的超声信号对管壁厚度进行非接触式测量。在分析电磁超声工作机理的基础上，利用Comsol Multiphysics多物理场仿真软件构建了电磁超声测厚的仿真模型。分析了永磁体产生的静磁场分布以及电磁超声换能器能量转换过程中磁场、电场和声场的分布及主要特征。研究了电磁超声剪切波在管道非平面试样中的传播过程。仿真结果表明，电磁超声剪切波测厚性能优异，测量精度可达0.001 mm。

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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2021 3rd International Conference on Intelligent Control, Measurement and Signal Processing and Intelligent Oil Field (ICMSP)

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