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Reflection and refraction on the fluid-solid interface of acoustic field excited by a concave phased array
Author(s): Zhang Bi-Xing, Wang Wen-Long
Pages: 3613-
3619
Year: 2008
Issue:
6
Journal: ACTA PHYSICA SINICA
Keyword: 凹面阵列; 超声相控阵; 反射与折射;
Abstract: 开展了凹面线性相控阵列辐射声场在液固界面上的反射和折射特性研究,利用射线近似方法,得到了凹面相控阵聚焦声场在液固界面上反射和折射后的声场渐近解析表达式,对声波在液固曲面上的反射和折射声场进行了分析和讨论.利用这个解析表达式,对凹面线性聚焦声场在液固平界面和液固圆柱界面情况下固体中折射纵波和折射横波的相控阵声场进行了分析和讨论,发现凹面线阵声场在液固圆柱界面下比液固平界面具有更好的聚焦效果.
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