理论建模和模式分析的多元件合传感器
Hao Sun1,2,3, Yu Lan1,2,3, Wei Lu1,2,3
1National Key Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China.
The Journal of the Acoustical Society of America
|January 22, 2025
概括
本研究介绍了多元件合传感器 (MCT) 的理论模型,揭示了元素间距如何影响低频声波阵列中的共振频率和振动模式.
科学领域:
- 声学 声学 在声学方面
- 转换器技术 转换器技术
- 阵列信号处理 阵列信号处理
背景情况:
- 低频传感器通常比它们的操作波长小.
- 这些传感器的紧密包装导致通过周围介质进行声学合.
- 这种合形成了多元件合传感器 (MCT) 结构.
研究的目的:
- 开发基于辐射和相互辐射理论的MCT理论模型.
- 分析MCT的共振频率和振动模式.
- 了解元素间距对传感器行为的影响.
主要方法:
- 使用辐射和相互辐射原理开发了MCT的理论模型.
- 分析了N个单一自由度元素的MCT.
- 使用有限元素分析 (FEA) 进行验证.
- 在二进制和三进制合传感器原型上进行实验测量.
主要成果:
- 该MCT模型预测了N个共振频率和相应的振动模式.
- 已经证明共振频率取决于传感器元件之间的距离.
- 在不同的模式中观察到不同的振动幅度和相位/反相位组合.
- 理论预测显示出与FEA和实验结果的强烈一致.
结论:
- 开发的理论模型准确地描述了MCTs的行为.
- 该模型增强了对合系统中的声传感器相互作用的理解.
- 这项工作为优化低频声波阵列设计提供了基础.
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