凹面円筒波源を持つ直線集束ビーム超音波顕微鏡のFD-TD法による非定常数値解析

概要

論文の詳細を見る
In the time domain, we analyzed reflection characteristics of a line-focus-beam ultrasonic which incidents from a fluid coupler to a solid sample. The analysis was performed numerically by using FD-TD (finite difference time domain) method. By the method, we have been able to simulate it well that a leaky wave in a fluid coupler radiated from a leaky surface acoustic wave propagates on the solid sample. Based on the investigation of a leaky wave we can determine the value of material constants of the solid sample in LFB (line-focus-beam) ultrasonic microscope. In our analysis, the edge waves were observed to influence the main wave reflected from the solid.
日本シミュレーション学会の論文
2000-03-15