拖曳线列阵中压电陶瓷水听器的设计

Design of a new low acceleration sensitivity piezoelectric ceramic hydrophone used for towed line sonar

本文介绍了一种用于拖曳线列阵声呐的压电陶瓷型水听器，我们在提高水听器工作稳定性与可靠性，在确保水听器有较高接收灵敏度的前提下，尽可能降低水听器加速灵敏度。该水听器的低频接收灵敏度为－１９３．５ｄＢ，在２０～１０００Ｈｚ频段内灵敏度起伏为±０．４ｄＢ。

A type of piezoelectric ceramic hydrophone used for towed line array sonar is described in this article. On improving the stability and the reliability of the hydrophone and also ensuring its higher receiving sensitivity, we analyse the principle and the method of reducing the acceleration sensitivity of hydrophone in detail. A sample hydrophone has been designed accordingly. The receiving sensitivity of this sample hydrophone is -193. 5dB and the undulation of the receiving sensitivity over the frequency band from 20Hz to 1000Hz is ± 0. 4dB,the acceleration sensitivity is about-65dB.