【作者】 张揽月； 张巍； 张习民；

【Author】 Zhang Lanyue~1 Zhang Wei~1 Zhang Ximin~2 (1 School of Underwater Acoustic Engineering,Harbin Engineering University Harbin 150001 China; 2 department of physics.Henan Institute of education Zhengzhou 450014 china)

【机构】 哈尔滨工程大学水声工程学院； 河南教育学院物理系；

【摘要】 矢量水听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散射声场的影响,使其接收声场失真和指向性发生畸变对圆柱形障板散射声压和质点振速场进行了理论分析和仿真计算,并研究了在有障板条件下矢量水听器幅频特性、相频特性和接收指向性的变化,计算和分析结果表明,矢量水听器接收性能的变化和声波频率,散射体尺寸和空间测量点有关.更多还原

【Abstract】 Vector-hydrophone is combined with a traditional omnidirectional 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 vector-hydrophone are not the same as that in the free sound field.The scattering sound pressure field and particle velocity field was researched and simulated in this paper,and the amplitude,phase and directivity of vector-hydrophone affected by the cylindrical baffles was researched.The research results indicated that the receive performance of vector-hydrophone were related to the frequency,scale of baffles and measurement point.更多还原