半球共振器中质量缺陷的修剪策略,基于多子分析
Yimo Chen1, Fanrui Kong1, Kai Zeng1
1College of Intelligence Science, National University of Defense Technology, Changsha 410073, China.
Micromachines
|April 26, 2025
概括
这项研究为半球共振器引入了一种新的离散修剪方案,在第一个波修剪过程中显著减少频率分割变化. 这种方法通过提高修剪效率和尽量减少损坏来增强质量平衡技术.
科学领域:
- 机械工程 机械工程
- 应用物理 应用物理
- 微电子机械系统 (MEMS) 是一种微电子机械系统.
背景情况:
- 进步的质量平衡技术需要在半球共振器中将识别和剪裁从频率分割扩展到多重波.
- 响应器中的结构几何错误通常会引入质量分布的第1波.
- 蚀刻参数极大地影响质量分布的多重波,给精确的共振器调带来了挑战.
研究的目的:
- 为了研究蚀刻修剪参数对半球共振器质量分布的多重波的影响.
- 建议和验证一个新的离散修剪方案,用于第一个波来解决频率分割和模式不匹配的问题.
- 为了实现高效和低损坏的第一和的修剪.
主要方法:
- 开发了一种使用虚假模式检测的多波识别方案,考虑前三个波.
- 采用有限元法 (FEM) 建模来分析几何错误和模拟蚀刻槽的影响.
- 引入了一个离散的修剪方案,将任务分解为初级和辅助蚀刻槽,以获得和补偿.
主要成果:
- FEM分析证实,结构几何错误在很大程度上引入了第1波.
- 光谱分析显示,蚀刻槽深度和宽度决定了引入的波幅和梯度.
- 离散修剪方案有效地补偿了第4波,将第1波与频率分割脱.
结论:
- 拟议的离散修剪方案可显著降低频率分割变化 (为单点修剪的11%),用于类似的第1调减.
- 这种方法在半球共振器中提供了第1的高效和低损坏的修剪.
- 该研究推进了用于高精度共振器件的质量平衡技术.
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