Objective the variations of the site and shape of focal region for a concave spherical ultrasound transducer in the case of high sound intensity and stronger attenuation were studied.
目的研究凹球面超声换能器的声焦域在高声强和媒质有较大衰减情况下,其形状和几何位置的变化。
2
The finite attenuation distance of the cylindrical and spherical detonation was deduced through analyzing the asymptotic attenuation.
通过对冲击波、爆轰波衰减渐近规律的分析,推导出柱面、球面强爆轰波的衰减有限距离的函数表达式。
3
Theoretical and practical results indicate that the method can compensate quite desirably the amplitude attenuation due to spherical divergence and earth absorption.