The effects of the boundary condition on sound scattering are also considered.
本文还考虑了界面状况对声散射的影响。
Effect of "square line" structure of titanium alloys on ultrasonic testing is analysed by the principle of sound scattering.
应用声散射原理描述了钛合金中方形轮廓线低倍组织对超声波探伤的影响。
This paper proposes a general model of sound scattering and directivity pattern for a vector sensor located on a complicated reflecting boundary.
利用边界元方法，在不规则障板边界条件下，对矢量传感器的散射声场进行了计算，得出了传感器的指向性图。
Because of wavelength of sound at low frequencies being close to the dimensions of small enclosures, scattering and diffraction in the course of sound radiation can not be ignored.
在小尺度封闭空间内，声波低频成分的波长与空间尺寸相当，声音在传播过程中所发生的散射、衍射等波动现象不容忽视。
The water sound speed and temperature can be calculated by measuring Brillouin scattering frequency shift.
借助测量水体布里渊散射的频移，可得到水体声速或温度。
A new method measuring speed of sound in a weak scattering fluid is proposed by using the ultrasound - modulated light.
本文介绍一种利用超声调制光波现象测量超声波在弱散射液中传输速度的方法。
Using the finite difference time-domain (FDTD) method and near field to far field transformation, pressure of the reflected sound from the scattering target is calculated.
本文应用一致性时域有限差分法（FDTD）和近场远场变换计算散射声目标的反射声压强度，找出反射声压级与目标声中心到换能器间距离的关系。
The pump wastage and noise brought by pump Brillouin scattering can be described by the nonlinear interaction of the Stocks wave which is carried by sound wave.
布里渊散射带来的泵浦损耗和噪声，可描述为抽运波、斯托克斯波通过声波进行的非线性相互作用。
By spherical function expansion of the scattered sound field in conjunction with rigid boundary conditions, formulas for reconstructing the shapes of rigid scattering objects are derived.
本文用球函数展开散射场，结合刚性边界条件导出了刚性目标的重构公式，并利用该公式重构了刚性球和椭球的形状。
By spherical function expansion of the scattered sound field in conjunction with rigid boundary conditions, formulas for reconstructing the shapes of rigid scattering objects are derived.
本文用球函数展开散射场，结合刚性边界条件导出了刚性目标的重构公式，并利用该公式重构了刚性球和椭球的形状。
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