基于声腔分布式参数等效电路的电动传感器的深水特性
Yongjie Sang1,2,3, Yishuang Zhang3, Shuai Wu3
1National Key Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China.
The Journal of the Acoustical Society of America
|November 18, 2024
概括
水下声学传感器的源级随着深度的增加而显著下降. 主动压力补偿可以显著提高深水中超低频性能.
科学领域:
- 声学 声学 在声学方面
- 海洋工程 海洋工程
- 传感器技术 传感器技术
背景情况:
- 带有被动压力补偿的电动传感器的源级在超低频率 (<100 Hz) 时随着工作深度的增加而急剧下降.
- 这种现象对于深水声学应用 (>200 m) 非常重要.
研究的目的:
- 为了深入研究超低频源水平下降背后的机制.
- 提出一种改善深水源水位的方法.
主要方法:
- 开发了一个使用分布式参数等效电路用于声腔的理论模型.
- 分析了声腔大小,气体参数和活性压力补偿的影响.
- 用原型共振频率测试验证模型.
主要成果:
- 深水中的声学符合性降低会增加共振频率,降低超低频源水平.
- 分布式参数模型与实验结果的一致性比一次性参数模型更好.
- 积极压力补偿被确定为一种方法,可以显著提高在大深度的声学性能.
结论:
- 拟议的分布式参数模型准确地解释了源水位的深度依赖性下降.
- 主动压力补偿是一种有效的策略,用于提高深海环境中的超低频传感器性能.
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