Barton Robert J, Smith Kevin B, Vincent Harold T
Division Newport, Naval Undersea Warfare Center, Newport, Rhode Island 02841, USA.
J Acoust Soc Am. 2010 Jun;127(6):EL240-5. doi: 10.1121/1.3397235.
In this study, the properties of the scattered acoustic vector fields generated by simple rigid motionless spheres are investigated. Analytical solutions are derived from general acoustic pressure scattering models, and analyzed for wave numbers in the resonance region. The separable active and reactive components of the acoustic intensity are used to investigate the structural features of the scattered field components. Numerical results are presented. The ability to extract scattered field features is illustrated with measurements obtained from a recent in-air experiment using an anechoic chamber and acoustic intensity probes to measure the scattered acoustic vector field from motionless rigid spheres.
在本研究中，对由简单刚性静止球体产生的散射声矢量场的特性进行了研究。从一般声压散射模型中推导了解析解，并针对共振区域的波数进行了分析。利用声强的可分离有源和无源分量来研究散射场分量的结构特征。给出了数值结果。通过最近在消声室中进行的一项空气实验获得的测量结果，展示了提取散射场特征的能力，该实验使用声强探头来测量来自静止刚性球体的散射声矢量场。
