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集成的无形碳膜温度传感器与加速器集成到MEMS传感器中.
Qi Zhang1, Xiaoya Liang1, Wenzhe Bi1
1State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Micromachines
|September 28, 2024
概括
无形碳薄膜提供卓越的温度传感. 将这些片与MEMS加速度计集成,可以创建一个高性能,经济的温度和加速度测量传感器.
科学领域:
- 材料科学 材料科学 材料科学
- 在 MEMS 技术方面,MEMS 技术
- 传感器技术 传感器技术
背景情况:
- 无形碳 (a-C) 对温度传感应用具有很好的性能.
- 将温度传感与加速度计相结合,可以提高设备的功能,减少复杂性.
研究的目的:
- 开发和描述一个集成的微电机系统 (MEMS) 传感器,将无形碳薄膜温度传感器与加速度计相结合.
- 研究沉积方法 (直流喷射与线性离子束) 对a-C薄膜特性和温度传感性能的影响.
主要方法:
- 使用直流磁铁喷射和线性离子束技术沉积无形碳薄膜.
- 使用扫描电子显微镜 (SEM) 和传输电子显微镜 (TEM) 分析了膜纳米结构.
- 拉曼光谱和X射线光电子光谱 (XPS) 用于分析碳结合 (sp2/sp3含量) 和集群大小.
主要成果:
- 具有较高sp2含量的直流喷射a-C薄膜,表现出优越的温度敏感性.
- 集成的传感器实现了1.62mV/°C (5V输入) 的温度灵敏度,在20-150°C之间具有0.9958的线性.
- 加速度计模块的灵敏度为1.4mV/g/5V,非线性和噪声低.
结论:
- 无形碳薄膜非常适合开发先进的温度传感器.
- 开发的集成MEMS传感器为同时监测温度和加速度提供了具有成本效益和高性能的解决方案.
- 这项研究为方便制造多功能MEMS设备铺平了道路.
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