Material Defect Reconstruction by Non-Destructive Testing with Laser Induced Ultrasonics

被引：3

作者：

Selim, H. ^{[1
]}

Delgado, M. ^{[2
]}

Trull, J. ^{[1
]}

Pico, R. ^{[3
]}

Cojocaru, C. ^{[1
]}

机构：

[1] Univ Politecn Cataluna, Dept Phys, Barcelona, Spain

[2] Univ Politecn Cataluna, Dept Elect Engn, Barcelona, Spain

[3] Univ Politecn Valencia, Inst Invest Gest Integrada Zonas Costeras, Valencia, Spain

来源：

13TH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER AND NONCONTACT TECHNIQUES, 2018 | 2018年 / 1149卷

关键词：

GENERATED ULTRASOUND; DAMAGE; TIME;

D O I：

10.1088/1742-6596/1149/1/012011

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Aligned with current research efforts and industrial applications on non-destructive testing, in this work, a hybrid system combining remotely induced laser ultrasonics with conventional transducer detection is studied for defects detection in metallic parts. The processing of the induced acoustic emission waves is proposed to be approached by means of a high-resolution volumetric signal processing procedure based on the synthetic aperture focusing technique for the benefit of the final 2D visualization of the defects. The advantages of the hybrid non-destructive testing approach and the performance of the processing technique are experimentally validated.

引用

页数：7

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