摘要
用阴影法（Ｓｈａｄｏｗｇｒａｐｈ）和ＣＣＤ照相，观测到声脉冲透过流体饱和孔隙介质（按英文“Ｆｌｕｉｄｓａｔｕｒａｔｅｄｐｏｒｏｕｓｍｅｄｕｍ”的第一个字母缩写为ＦＳＰＭ）样品后在水中传播的三个声脉冲，这三个声脉冲分别对应于ＦＳＰＭ样品中的三种体波（快纵波、横波、慢纵波）的转换模式．由阴影法记录的三个透射声脉冲的位置与计算结果以及发射一接收法的测量结果一致．
With the shadowgraph method, three ultrasonic pulses in water, which corresponds to the conversion modesof the fast compressional wave the transverse wave and the slow compressional wave in the sample of fluid-saturatedporous medium(FSPM) respectively, were observed and recorded by CCD camera. The position of each pulse is consistentwith the computed position and the results measured by transducer.
出处
《声学学报》
EI
CSCD
北大核心
2000年第1期1-4,共4页
Acta Acustica
基金
国家自然科学基金!49674277
