Multi-mode plane wave imaging based full-section inspection for ultra-thick welds with the compact array

IF 3.8 2区物理与天体物理 Q1 ACOUSTICS

Ultrasonics Pub Date : 2025-06-25 DOI:10.1016/j.ultras.2025.107727

Xinzhi Ma , Mu Chen , Xu Gu , Xintao Xu , Keji Yang , Deqing Mei , Haiteng Wu , Jian Chen , Haoran Jin

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引用次数: 0

Abstract

Full-section ultrasonic non-destructive testing of ultra-thick welds (thickness

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90 mm) traditionally requires multiple transducer groups with multiple scanning to achieve full coverage, resulting in bulky equipment and low inspection efficiency. This study presents a multi-mode plane wave imaging (MM-PWI) technique that enables efficient, full-section inspection of ultra-thick welds using a single compact transducer array. The proposed method decouples various skipping modes of longitudinal and shear waves to reconstruct flaws throughout the weld from top to bottom. To address signal attenuation caused by multiple wave skips, the vector coherence factor (VCF) is applied, significantly improving the signal-to-noise ratio (SNR) of the images. Experimental results demonstrate that a 120-mm-thick weld can undergo fully inspection using a 64-element array with a 0.6 mm pitch. All flaws can be inspected in a single scan with SNRs exceeding 32 dB. The main advantage of the proposed method lies in its simplicity and stability in the testing process, which can significantly improve inspection efficiency and be easily applied in industrial inspections.

查看原文本刊更多论文

基于多模平面波成像的紧凑阵列超厚焊缝全断面检测

传统的超厚焊缝（厚度>； 90mm）全断面超声无损检测需要多个换能器组进行多次扫描才能实现全覆盖，导致设备体积大，检测效率低。本研究提出了一种多模平面波成像（MM-PWI）技术，该技术可以使用单个紧凑的传感器阵列对超厚焊缝进行高效的全截面检测。该方法解耦了纵波和横波的各种跳跃模式，从上到下重建了整个焊缝的缺陷。为了解决多次跳波引起的信号衰减问题，采用矢量相干系数（VCF），显著提高了图像的信噪比。实验结果表明，采用64单元阵列，间距为0.6 mm，可以对120 mm厚焊缝进行全面检测。所有缺陷都可以在一次扫描中检查，信噪比超过32 dB。该方法的主要优点在于检测过程简单、稳定，可显著提高检测效率，易于应用于工业检测。

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

Ultrasonics 医学-核医学

CiteScore

7.60

自引率

19.00%

发文量

186

审稿时长

3.9 months

期刊介绍： Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed. As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.