Sparse-TFM Imaging of Lamb Waves for the Near-Distance Defects in Plate-Like Structures

The ultrasonic phased array total focusing method (TFM) has the advantages of high imaging resolution and high sensitivity to small defects. However, it has a long imaging time and cannot realize near-distance defect imaging, which limits its application for industrial detection. A sparse-TFM algori...

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Bibliographic Details
Main Authors: Haiyan Zhang, Yaqun Liu, Guopeng Fan, Hui Zhang, Wenfa Zhu, Qi Zhu
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/9/5/503