基于驱动电压调制的环形MEMS陀螺仪的范围扩展技术
1School of Instrument and Electronics, North University of China, Taiyuan 030051, China.
Micromachines
|January 8, 2025
概括
在微电机系统 (MEMS) 陀螺镜中控制驱动电压可以调整灵敏度. 较低的电压显著扩展陀螺仪的陀螺仪.
科学领域:
- 工程 工程师 工程师 工程师
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
背景情况:
- 微电机系统 (MEMS) 陀螺仪对于惯性传感至关重要.
- 控制MEMS陀螺仪的灵敏度是优化各种应用的性能的关键.
- 现有的灵敏度控制方法在范围和精度上可能有局限性.
研究的目的:
- 为了研究驾驶控制电压与环形MEMS陀螺仪的操作范围之间的关系.
- 开发一个数学模型,将驱动电压与陀螺仪灵敏度相关联起来.
- 为了优化MEMS陀螺仪的性能在广泛的测量范围.
主要方法:
- 使用微电机系统 (MEMS) 技术用于陀螺仪制造.
- 系统地改变对MEMS陀螺仪应用的驾驶控制电压.
- 评估陀螺仪性能指标,包括在不同电压下范围,分辨率和非线性.
- 开发一个数学模型来描述电压敏感性关系.
主要成果:
- 发现较低的驱动电压显著增加了MEMS陀螺仪的测量范围.
- 在1.46V时,陀螺仪实现了±1000°/s的范围,比10.85V时的±200°/s增加了五倍.
- 性能降低 (分辨率,非线性) 显著低于范围扩展的规模.
- 与调制检测电路收益相比,在整个操作范围内实现了优化陀螺仪性能.
结论:
- 调整驱动控制电压是调整环形MEMS陀螺仪灵敏度和范围的有效方法.
- 已建立的数学模型为预测和控制陀螺仪行为提供了基础.
- 这种基于电压的控制策略为提高MEMS陀螺仪在各种传感应用中的实用性提供了一个有希望的方法.
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