激光超声技术及其在材料缺陷检测中的应用

Laser Ultrasonic Technique and Its Application in Detection of Material Defects

概述了激光超声的激发机理和探测方法,并指出光学检测方法的优点与重要性;介绍了声表面波及其在材料缺陷检测中的应用,详细介绍了扫描激光源技术检测材料缺陷的方法;同时指出了激光超声技术在实际应用中的优点和缺点。

Outlines the main mechanism of laser generated ultrasound and the methods of laser ultrasonic detection, point out the optical detection method＇s advantage and importance; the applications of the laser SAW in material flaw detection are introduced, and describe the scanning laser source technique to detect material defect in detail; and point out the laser ultrasonic technique ’s advantage and drawback in practical application.