摘要
在复杂的水声信道中 ,实现高速率的数据传输 ,水声换能器的带宽是一个重要的技术问题。实验中 ,为了拓宽换能器的带宽 ,我们利用圆柱形压电换能器的径向振动与液腔振动相耦合原理研制自由溢流式换能器和利用纵向振动与前盖板弯曲振动相耦合原理研制纵向振动复合棒换能器。本文介绍适应于复杂的水声信道中 。
The bandwidth of the underwater acoustic transducers for high-rate data commun ication in a complex underwater acoustic channel is a key technology. In the exp eriment, We developed a free-flood transducer on the principle of coupling betwe en the radial vibration of cylindrical piezoelectric transducer and the liquid c avity vibration, and developed a longitudinal vibrant compound pole transducer o n the principle of coupling between the longitudinal vibration of ceramic and th e bending vibration of front curve board, in order to broaden the bandwidth of t he transducer. This paper introduces two kinds of wide band transducers that are fit for high-rate data communication in complex underwater acoustic channel.
出处
《海洋技术》
北大核心
2002年第2期51-54,共4页
Ocean Technology
基金
国家自然科学基金 (批准号 60 172 0 5 3 )
福建省自然科学基金(项目编号 A0 110 0 1)资助项目
