多模式合振动传感器在共振频率下具有更高的发射性能
1Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi'an, 710119, China.
The Journal of the Acoustical Society of America
|February 20, 2025
概括
这项研究介绍了一种新型的三频合振动压电传感器. 这种新设计在多个共振频率上提供了增强的超声波发射性能.
科学领域:
- 压电变频器技术 压电变频器技术
- 声学工程 声学工程
- 材料科学 材料科学 材料科学
背景情况:
- 现有的压电传感器通常以单个共振频率工作,限制了它们在多频或变频应用中的使用.
- 不同频率的高能超声波发射对于各种先进的应用是必不可少的.
- 当前的传感器设计往往忽视了适应频率操作和高功率输出的需要.
研究的目的:
- 提出和分析一种新型的三频合振动压电传感器.
- 为了研究传感器在多个共振频率的增强发射性能.
- 为多频率转换和高能超声波辐射提供理论和实验参考.
主要方法:
- 导出三维合振动机电等效电路的导出.
- 对传感器特性进行数值模拟.
- 使用超声波水箱测量系统进行实验验证,以评估声场,轴心声压和传输电压响应.
- 与标准的矩形压电陶传感器进行比较实验.
主要成果:
- 拟议的三频合振动压电传感器表现出更高的排放性能.
- 模拟和实验结果与理论预测有很好的一致性.
- 传感器成功地在三个不同的共振频率上产生稳定且更强的超声波.
- 实验数据验证了电机学和声场特征.
结论:
- 开发的三频合振动压电传感器为多频应用提供了卓越的性能.
- 这项研究为设计能够实现多频率转换和高能超声输出的传感器提供了宝贵的理论和实验见解.
- 这些发现为更多功能和更强大的超声波传感器应用铺平了道路.
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