声自导换能器在强声脉冲下的响应特性分析

乔子椋; 张群飞; 雷开卓

doi:10.11993/j.issn.1673-1948.2011.03.006

声自导换能器在强声脉冲下的响应特性分析

doi: 10.11993/j.issn.1673-1948.2011.03.006

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金(10974154), 国家大学生科技创新计划(101069935)

详细信息

作者简介:
乔子椋(1988-), 男, 在读硕士, 研究方向为实时对抗仿真.

中图分类号: TJ630.34; TB56
计量
- 文章访问数: 1234
- HTML全文浏览量: 2
- PDF下载量: 733
- 被引次数: 0
出版历程
- 收稿日期: 2010-12-15
- 修回日期: 2011-01-28
- 刊出日期: 2011-06-30

Response Characteristic of Acoustic Homing Transducer to Intense Sound Pulse

College of Marine Engineering, Northwestern Ploytechnical University, Xi′an 710072, China

摘要

摘要: 为了分析强声脉冲对自导系统的作用效果, 需要研究声自导换能器在强声脉冲下的响应特性。根据导纳圆图法建立了复合棒型声换能器的等效电路模型, 并进行了仿真。仿真中强声脉冲信号使换能器等效电路产生振荡。在水下强声试验系统中进行了水下强声试验, 采集了强声脉冲信号及换能器输出信号, 试验中强声脉冲亦使换能器产生了振荡, 与仿真结果相符, 也验证了等效电路模型的合理性。研究还发现, 不同换能器产生的振荡相关性差, 使方位估计无法正常进行。试验结果表明, 强声脉冲可对自导系统产生明显的压制效果, 使其进入致盲状态, 对抗效果明显。
- 声换能器 /
- 导纳圆图 /
- 等效电路 /
- 强声脉冲 /
- 响应特性
Abstract: To evaluate the effect of intense sound pulse on homing system, the response characteristic of acoustic transducer to intense sound pulse is investigated. An equivalent circuit model of typical transducer is established based on the admittance circle diagram method. With this model, the response characteristic is analyzed by computer simulations, and the results show that an oscillation appears in the equivalent circuit due to the intense sound pulse. Water tank experiment is conducted in underwater intense sound experiment system, and the intense sound pulse signal as well as the output signal of the transducer is collected. In the experiment, intense sound pulse also leads to an excited oscillation of the transducer, which validates the correctness of the equivalent circuit model. Furthermore, the correlation among responses of different transducers is poor, which disturbs bearing estimation process. The experimental results indicate that intense sound pulse imposes an apparent suppression effect on the homing system, and brings torpedo into a blinding status.
- acoustic transducer /
- admittance circle diagram /
- equivalent circuit /
- intense sound pulse /
- response characteristic

HTML全文

参考文献(6)

[1]	李宁, 陈建峰, 黄建国, 等. 各种水下声源的发声机理及其特性[J]. 应用声学, 2009, 29(4): 241-248. Li Ning, Chen Jian-feng, Huang Jian-guo, et al. Sounding Mechanisms and Characteristics of Various Underwater Sound Sources[J]. Applied Acoustics, 2009, 29(4): 241- 248.
[2]	潘正伟, 刘平香. 水下爆炸对鱼雷毁伤的实验研究[J]. 舰船科学技术, 2003, 25(6): 52-55. Pan Zheng-wei, Liu Ping-xiang. Experimental Research of Underwater Explosion Damage Effect on Torpedos[J]. Ship Science and Technology, 2003, 25(6): 52-55.
[3]	李继民. 水下连续爆炸声信号对声自导鱼雷的对抗分析与研究[D]. 南京: 南京理工大学, 2006.
[4]	孙鹏, 刘平香. 水下定向声能技术在水声对抗中的应用研究[J]. 舰船科学技术, 2007, 29(3): 65-67. Sun Peng, Liu Ping-xiang. On Study of Underwater Directional Acoustic Energy Technology and Its Application in Underwater Acoustic Warfare[J]. Ship Science and Technology, 2007, 29(3): 65-67.
[5]	栾桂东, 张金铎, 王仁乾. 压电换能器和换能器阵[M]. 北京: 北京大学出版社, 2005.
[6]	李继容. 导纳圆图在压电式超声波换能器中的研究[J]. 仪表技术, 2007, (11): 62-64. Li Ji-rong. Study on Admittance Circle Diagram of Piezoelectric Ultrasonic Wave Transducer[J]. Instrumentation Te- chnology, 2007, (11): 62-64.