基于模态合分析和零极控制的双频Janus传感器的设计
Rui Pan1,2, Xiping Mo1, Yong Chai2
1Laboratory of Ocean Acoustic Technology, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
The Journal of the Acoustical Society of America
|October 16, 2025
概括
这项研究用极零理论解释了多共振传感器中的零响应现象. 一种新的设计方法控制了传感器的零点,以优化在水下声学中的宽带性能.
科学领域:
- 水下声学 水下声学
- 传感器的设计 传感器设计
- 振动力学 振动力学
背景情况:
- 纵向传感器 (Tonpilz,Janus) 在水下声学中至关重要.
- 实现宽带响应需要令人兴奋的多个振动模式,导致多共振传感器.
- 在多式联中,零响应机制的理解很少,这阻碍了准确的预测.
研究的目的:
- 用极零理论分析多共振传感器中的零响应现象.
- 建立模式合,系统极点和零点之间的关系.
- 为控制零位置和优化多频段性能提出一个模块化设计方法.
主要方法:
- 零极理论和"弹质量"模型的应用.
- 对系统极点和零点的模式合效应的分析.
- 开发和测试一个三共振双频段斯传感器 (DBJT).
主要成果:
- 建立了模式合和系统极点/零点之间的关键关系.
- 开发了一个模块化设计方法来精确控制零位置.
- 在特定频段中证明了最佳的能量度.
- 通过功能双频Janus传感器 (DBJT) 验证了方法.
结论:
- 拟议的方法允许通过控制零位置来有效设计多频段传感器.
- DBJT的设计增强了基本共振,并最大限度地减少了响应波动.
- 这项工作为设计用于水下检测和通信的先进传感器提供了预测框架.
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