| 钹式水听器的改进及仿真测试研究 |
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| 引用本文： | 陈晟,林关成.钹式水听器的改进及仿真测试研究[J].渭南师范学院学报,2009,24(2):24-27. |
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| 作者姓名： | 陈晟 林关成 |
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| 作者单位： | 1. 西北工业大学航海学院,西安,710072
2. 西北工业大学航海学院,西安,710072;渭南师范学院传媒工程系,陕西,渭南,714000 |
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| 摘 要： | 钹式水听器体积小,灵敏度高,但是接收的性能不够稳定,接收频带比较窄.为了解决这个问题,文章对钹式水听器结构进行改进,将水听器中单片压电陶瓷晶片改成双片,减小晶片半径,采用并联电路.文中先对水听器进行静态分析,然后用有限元软件对改进前后的水听器进行模拟分析,最后在水池中进行实验.结果都证明了改进后的水听器接收频带变宽,频段内接收性能稳定,灵敏度依然较高.
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| 关 键 词： | 钹式水听器 谐振频率 导纳 |
Research on the Improvement and Simulation Tests for the Cymbal Hydrophone |
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| CHEN Sheng,LIN Guan-cheng.Research on the Improvement and Simulation Tests for the Cymbal Hydrophone[J].Journal of Weinan Teachers College,2009,24(2):24-27. |
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| Authors: | CHEN Sheng LIN Guan-cheng |
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| Institution: | 1 School of Marine Engineering, Northwestern Polytechnical University, Xi’an 710072, China;2 Department of Media and Communications Engineering, Weinan Teachers University, Weinan 714000, China) |
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| Abstract: | The cymbal hydrophone has small volume and high sensitivity, but its reception performance is not stable enough, with narrow receiving frequency band. In order to improve the inadequacy, the structure of the cymbal hydrophone had been changed. The single piezoelectric ceramic is changed to double, the radius of the piezoelectric ceramic is reduced, and parallel circuit is used. At first, static analysis of the new structure is described, then simulations are made for both the traditional and new structures of hydrophone by finite element software, at last, experiments are carried in the water pool. The results show that the improved hydrophone has wider reception frequency band, the reception performance is stable within this frequency band, and the sensitivity is still high. |
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| Keywords: | Cymbal hydrophone resonance frequency acoustic admittance |
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