用于水下目标监测的低频同振式矢量水听器研制

Development of low-frequency co-vibration vector hydrophone used forunderwater target monitoring

摘要: 基于三维压电加速度传感器，设计了一款适用于低频的同振式矢量水听器，分析计算了其在水中的声学性能，并对制作的矢量水听器样品进行了性能验证。制成的球型矢量水听器样品直径为78 mm，在驻波管中对该矢量水听器进行了灵敏度和指向性检测，检测结果与理论计算结果吻合。该矢量水听器在低频频段内具有较好的灵敏度和“8”字型指向性，适合用于浮标、潜标、UUV （无人水下航行器）等平台的水声监测模块。

Abstract: In this paper, based on 3D piezo-electric accelerometer, a co-vibration vector hydrophone applicable at low frequency is designed and its acoustic performance is calculated. A sample of this vector hydrophone is made and tested. The diameter of the vector hydrophone sample is 78 mm. Test of sensitivity and directivity is proceeded in a standing wave tube. The test results are consistent with the calculation results. The vector hydrophone has high sensitivity and ‘8’ shape directivity at low frequency. This vector hydrophone is appropriate for underwater acoustic detecting on platforms such as float,subsurface buoy and UUV(unmanned underwater vehicle).