一个自由泛滥环式传感器阵列的一次性参数模型
Junsu Lee1, Kyounghun Been1, Haksue Lee2
1Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, South Korea.
The Journal of the Acoustical Society of America
|January 23, 2024
概括
本研究分析了用于水下声学的自由泛滥环 (FFR) 传感器阵列. FFR元件之间的更宽的间隙提高了操作带宽,减少了负导电,提高了阵列性能.
科学领域:
- 水下声学 水下声学
- 声学传感器技术 声学传感器技术
- 压电器件是压电器件.
背景情况:
- 自由泛滥环 (FFR) 传感器由于其宽带宽和紧的尺寸,对水下应用至关重要.
- 单个FFR传感器在达到高声压水平方面存在局限性,需要使用传感器阵列.
- 了解阵列特性,包括相互辐射和元素间距,对于优化性能至关重要.
研究的目的:
- 综合分析垂直排列的FFR传感器阵列的电气和声学特性.
- 开发一个能够考虑相互辐射负荷和环间间隙的模型.
- 为FFR传感器阵列的有效设计提供见解.
主要方法:
- 为压电环,空洞,隙和辐射阻抗开发一次性参数模型.
- 使用赫尔姆霍兹-基尔霍夫积分公式计算辐射阻抗矩阵.
- 对四个FFR传感器阵列的分析,以调查间隙大小的影响.
主要成果:
- 拟议的模型准确地预测了共振峰值 (在5%的误差范围内) 和传输电压响应 (TVR) 水平 (在3dB范围内).
- 在FFR元素之间较大的差距降低了负电导的可能性.
- 增加的间隙宽度扩大了FFR传感器阵列的操作带宽.
结论:
- 开发的模型为FFR传感器阵列性能提供了准确的预测.
- 优化FFR元素之间的间隔是提高阵列带宽和稳定的关键.
- 这项研究为在水下系统中设计和应用FFR传感器阵列提供了有价值的指导.
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