超声导波在管道缺陷成像中的发展与挑战

Development and Challenges of Ultrasonic Guided Waves in Pipeline Defect Imaging

回顾了超声导波在管道缺陷检测中的发展历程,阐述了管道导波的传播模态,调研了管道缺陷成像技术的研究现状。对超声导波在管道缺陷成像的应用展开了评述,介绍了相控阵成像法、时间反转法、层析成像法、偏移成像法、延迟叠加法,并比较了各种方法的特点与适用范围。最后总结了当前超声导波在管道缺陷成像中面临的机遇与挑战。

Firstly, the development history of ultrasonic guided waves in pipeline defect detection was briefly reviewed. Meanwhile, the propagation mode of pipeline guided waves was described, and the current research status of pipeline defect imaging technology was investigated. Moreover, the application of ultrasonic guided waves in pipeline defect imaging was reviewed. Phased array imaging, time reversal, tomography, migration imaging, and delayed stacking were introduced then, and the characteristics of various methods were compared with scope of application. Finally, the current opportunities and challenges faced by ultrasonic guided waves in pipeline defect imaging were summarized.