考虑到歇斯底里非线性,研究高功率巨型磁束式水下传感器的时频多尺度特性
Husheng Li1,2, Bing Gao2, Zhixing He2
1School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414000, China.
The Journal of the Acoustical Society of America
|September 2, 2025
概括
一个新的模型通过计算复杂的歇斯底里,准确地预测了高功率的巨型磁束式水下传感器 (HGMUT) 的性能. 这种进步改善了水下声纳探测系统.
科学领域:
- 工程
- 材料科学
- 听力学
背景情况:
- 对于活跃的声纳探测系统来说, 强大的强磁性水下传感器至关重要.
- 这些传感器由于合场而表现出复杂的非线性动态歇斯底里,挑战了准确的性能特征.
- 现有的模型难以完全捕捉这些传感器的复杂行为.
研究的目的:
- 开发一个全面的等效电路模型,准确地表示高功率巨型磁束式水下传感器 (HGMUT) 的时间频率特征.
- 解决HGMUT中非线性动态歇斯底里所带来的挑战.
- 提高预测传感器输出属性的准确性.
主要方法:
- 使用分析方程计算偏差和交流驱动磁场来分析磁场分布.
- 采用了增强的普雷萨克歇斯底里模型来描述动态磁力-机械应变关系.
- 开发了输出位移和力的动态方程,以及用于频率和时间域分析的机械声学合等效电路.
主要成果:
- 一个原型传感器实现了大约1kHz的共振频率和最大传输电流响应187dB.
- 拟议的模型与实验数据密切一致.
- 该模型有效地捕获并预测了传感器的输出时间频率特征.
结论:
- 开发的等效电路模型准确地表示HGMUT的非线性动态歇斯底里.
- 该模型提供了可靠的工具来描述和预测这些传感器的性能.
- 这些发现有助于提高水下主动声纳探测系统的准确性.
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