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sound diffraction
相关语句
  声衍射
     Influences of sound diffraction by elastic spherical shell on acoustic vector sensor measurement
     弹性球壳声衍射对矢量传感器测量影响
短句来源
     According to the resonance scattering theory,the sound diffraction field is composed of the resonance component and the background component,which the former depends on the mechanical impedance and the acoustic impedance of the spherical shell,but the latter depends on the sound diffraction of the rigid sphere and the soft sphere.
     根据共振散射理论,弹性球壳衍射声场的共振项与壳体的机械阻抗和辐射阻抗有关,而其背景项与刚性球和绝对软球的声衍射有关. 计算和分析结果表明,在球壳散射声场的共振项频率处,矢量传感器的接收声场严重失真,且其指向性图变得复杂;
短句来源
     The influences of sound diffraction by a spherical shell on the measurement results and directivity of AVS were calculated by using the approximate equation of mechanical impedances of the thin spherical shell.
     采用薄壁球壳机械阻抗近似公式,计算了球壳声衍射对矢量传感器声场测量和指向性的影响.
短句来源
  衍射声场
     According to the resonance scattering theory,the sound diffraction field is composed of the resonance component and the background component,which the former depends on the mechanical impedance and the acoustic impedance of the spherical shell,but the latter depends on the sound diffraction of the rigid sphere and the soft sphere.
     根据共振散射理论,弹性球壳衍射声场的共振项与壳体的机械阻抗和辐射阻抗有关,而其背景项与刚性球和绝对软球的声衍射有关. 计算和分析结果表明,在球壳散射声场的共振项频率处,矢量传感器的接收声场严重失真,且其指向性图变得复杂;
短句来源
     An acoustic vector sensor(AVS) is combined with a traditional omni directional sound pressure sensor and dipole directional particle velocity sensor, which is applied to underwater acoustic measurement and acoustic detection. Because of the sound diffraction by the AVS carrier,the receiving sound field and directivity of AVS are not the same as that in the free sound field.
     声矢量传感器由传统的无指向性声压传感器和偶极子指向性质点振速传感器组成,被应用于水声测量和探测领域,但作为水声测量设备它会受到安装载体衍射声场的影响,使其接收声场失真和指向性发生畸变.
短句来源
  “sound diffraction”译为未确定词的双语例句
     Refers to establishment of the computation model relevant to sound diffraction field in uniform sea waters by Huygen's principle.
     利用惠更斯原理和虚源方法建立了均匀海水中障碍物后声传播损失的计算模型,并用虚源方法对模型进行了数值实验验证。
短句来源
     Here,the sound pressure field and particle velocity field of sound diffraction by an elastic spherical shell are studied theoretically.
     以实际应用需求为背景,从理论上分析了平面声波在弹性球壳上的衍射声压场和振速场;
短句来源
  相似匹配句对
     Sound
     声音
短句来源
     sound.
     sound.
短句来源
     Approximate Calculation of the Sound Field of Diffraction of Barrier
     声屏障衍射声场的近似计算
短句来源
     On Natures of Diffraction
     关于衍射的本性
短句来源
     The X-Ray diffraction and
     利用全港X射线衍射分析提取微结构参数如球镍的层错缺陷结构参数和储氢合金的微结构信息以及利用织构分析探讨电极材料的织构生长特性。
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  sound diffraction
Pinna gain curves resemble that of a finite conical horn, including resonance.2.The directional properties of the external ear in both species result from sound diffraction at the pinna face, as it approximates a circular aperture.
      
The problem of sound diffraction by a groove on a rigid surface in the presence of a grazing flow is considered.
      
In the framework of the theory of integral equations, the problem of sound diffraction by pressure-release and acoustically stiff inhomogeneities of an oceanic waveguide is considered.
      
An exact solution is obtained to the problem of sound diffraction by an elastic or impedance sphere located near an impedance or elastic boundary of a halfspace.
      
Sound diffraction by a moving inhomogeneity in a shallow sea is considered as applied to a shadow observation system.
      
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Refers to establishment of the computation model relevant to sound diffraction field in uniform sea waters by Huygen's principle. Numerical experiments have been made and a satisfactory result obtained.

利用惠更斯原理和虚源方法建立了均匀海水中障碍物后声传播损失的计算模型,并用虚源方法对模型进行了数值实验验证。该模型在计算均匀海水中障碍物后的传播损失时,考虑了声波的衍射效应,得到了较为满意的结果。

An acoustic vector sensor(AVS) is combined with a traditional omni directional sound pressure sensor and dipole directional particle velocity sensor, which is applied to underwater acoustic measurement and acoustic detection.Because of the sound diffraction by the AVS carrier,the receiving sound field and directivity of AVS are not the same as that in the free sound field.Here,the sound pressure field and particle velocity field of sound diffraction by an elastic spherical shell...

An acoustic vector sensor(AVS) is combined with a traditional omni directional sound pressure sensor and dipole directional particle velocity sensor, which is applied to underwater acoustic measurement and acoustic detection.Because of the sound diffraction by the AVS carrier,the receiving sound field and directivity of AVS are not the same as that in the free sound field.Here,the sound pressure field and particle velocity field of sound diffraction by an elastic spherical shell are studied theoretically.The influences of sound diffraction by a spherical shell on the measurement results and directivity of AVS were calculated by using the approximate equation of mechanical impedances of the thin spherical shell.According to the resonance scattering theory,the sound diffraction field is composed of the resonance component and the background component,which the former depends on the mechanical impedance and the acoustic impedance of the spherical shell,but the latter depends on the sound diffraction of the rigid sphere and the soft sphere.Computer simulation and analysis show that the receiving sound field and directivity diagram of AVS are seriously distorted at the resonance frequency,and they also are related to the distance and angle of incident plane wave.

声矢量传感器由传统的无指向性声压传感器和偶极子指向性质点振速传感器组成,被应用于水声测量和探测领域,但作为水声测量设备它会受到安装载体衍射声场的影响,使其接收声场失真和指向性发生畸变.以实际应用需求为背景,从理论上分析了平面声波在弹性球壳上的衍射声压场和振速场;采用薄壁球壳机械阻抗近似公式,计算了球壳声衍射对矢量传感器声场测量和指向性的影响.根据共振散射理论,弹性球壳衍射声场的共振项与壳体的机械阻抗和辐射阻抗有关,而其背景项与刚性球和绝对软球的声衍射有关.计算和分析结果表明,在球壳散射声场的共振项频率处,矢量传感器的接收声场严重失真,且其指向性图变得复杂;另外,它们也与声波的入射方向和距离有关.这些结果为利用矢量传感器进行水声测量和探测提供基本的物理基础.

 
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