Modeling of Focused Acoustic Field of a Concave Multi-annular Phased Array Using Spheroida

Modeling of Focused Acoustic Field of a Concave Multi-annular Phased Array Using Spheroidal Beam

Equation

余立立;寿文德;惠春

【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2012(057)002

【摘要】A theoretical model of focused acoustic field for a multi-annular phased array on concave spherical surface is proposed. In this model, the source boundary conditions of the spheroidal beam equation （SBE） for multi-annular phased elements are studied. Acoustic field calculated by the dynamic focusing model of SBE is compared with numerical results of the O＇Neil and Khokhlov-Zabolotskaya-Kuznetsov （KZK） model, respectively. Axia/dynamic focusing and the harmonic effects are presented. The results demonstrate that the dynamic focusing model of SBE is good valid for a concave multi-annular phased array with a large aperture angle in the linear or nonlinear field. 【总页数】5页(285-289)

【关键词】聚焦声场;相控阵列;梁方程;环形;球状;建模;SBE法;动态聚焦 【作者】余立立;寿文德;惠春

【作者单位】Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China／Institute of Navigation Science,

Shanghai Maritime University, Shanghai 201306, China;Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China／Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, China;Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China 【正文语种】中文

【中图分类】O422.2;TN821.8 【相关文献】

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