Determination of the acoustic nonlinearity parameter in biological media from second-order harmonic component in echo signals

被引：0
|
作者：
Liu, JH [1 ]
Zhang, D [1 ]
Gong, XF [1 ]
机构：
[1] Nanjing Univ, Inst Acoust, State Key Lab Modern Acoust, Nanjing 210093, Peoples R China
来源：
ACTA PHYSICA SINICA-OVERSEAS EDITION | 1999年 / 8卷
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper presents two methods for determination of the acoustic nonlinearity parameter B/A for biological media by using ultrasound echo signals. One is to use the finite amplitude insert-substitution method via the second harmonic component in echo signals reflected from a high-reflectance interface. The other is to measure B/A via the second harmonic components in echo signals reflected from both the front and back interfaces of the sample. The nonlinearity parameter B/A values of some liquids and biological soft tissues are obtained using these two methods. The results coincide well with the B/A values presented in the literature.
引用
收藏
页码：S337 / S340
页数：4
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