Han Q B, Qian M L, Wang H
Institute of Acoustics, Tongji University, Shanghai 200092, China.
Ultrasonics. 2006 Dec 22;44 Suppl 1:e1323-7. doi: 10.1016/j.ultras.2006.07.010. Epub 2006 Aug 4.
A new method for detection of the soild/soild interface wave with laser ultrasonics is introduced in this paper. Based on the interaction between the acoustic wave and the probe laser beam of an interferometer in a transparent solid, the Stoneley waves propagated along the quartz/steel interface are detected successfully. The dispersion properties of Leaky Rayleigh wave are studied when the boundary conditions are described by interface spring mode. The Leaky Rayleigh wave at Plexiglas/aluminum interface is also detected and the experimental results are in good agreement with the theoretical results. It shows that the interface wave should be a powerful technique for evaluation of the interface properties.
本文介绍了一种利用激光超声检测固体/固体界面波的新方法。基于透明固体中声波与干涉仪探测激光束之间的相互作用，成功检测到沿石英/钢界面传播的斯通利波。当用界面弹簧模型描述边界条件时，研究了泄漏瑞利波的频散特性。还检测了有机玻璃/铝界面处的泄漏瑞利波，实验结果与理论结果吻合良好。结果表明，界面波应是评估界面性能的一种有力技术。
