宽频带水下导引系统的水声传感器设计

Design of the Transducer of Wide-band Underwater Homing System

对适用于水下武器导引系统的水声传感器频带展宽问题进行了讨论。采用 Tonpilz型纵向振动压电水声换能器作为传感器阵的基本单元 ,在设计上将压电晶堆激励的纵向振动与辐射面的弯曲振动模态综合考虑 ,改善了换能器的声辐射和接收频率响应特性 ,实现了高空间增益和 Δf≥ 1 0 .0 k

This article discusses the widening of the band of the sensor used for underwater weapon homing system. The tonpilz type longitudinal vibration piezoelectric transducer is used as a basic unit of the sensor array. The longitudinal vibration mode excited by piezoelectric pile is coupled with the curved vibration mode of radiating surface, this radiating and receiving frequency responsive characteristics of the transducer being improved. and the high spatial gain spatial gain and wide band characteristics of Δ f ≥10.0 kHz being realized.