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MEMS陀螺仪是MEMS传感器中应用最广泛的器件.当今信息智能时代的发展为MEMS陀螺仪带来新的发展机遇,使MEMS陀螺仪进入更高精度和更高可靠性的新的发展阶段.从微结构、电子学控制、工艺平台和集成应用四个方面综述了MEMS陀螺仪的最新进展.对MEMS陀螺仪分别按简并和非简并工作模式;速率陀螺仪的机械化和全角机械化;体... 相似文献
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基于DSP的MEMS陀螺仪信号处理平台的设计 总被引:3,自引:1,他引:2
针对现在MEMS陀螺仪的精度还不高的状况,为了降低陀螺仪信号的噪声,改善其非线性性能,提高陀螺仪信号的精度,提出基于TI公司的数字信号处理器TMS320VC33的MEMS陀螺信号实时采集与处理系统,对MEMS陀螺信号进行降噪、非线性补偿处理;并在DSP多任务机制下实现数据采集、处理、传输的并行化,该信号处理平台信号处理时间短,实时性高,可以满足MEMS陀螺仪的使用要求,算法简单有效,可以显著降低MEMS陀螺信号的噪声,在实际应用中具有一定的参考意义. 相似文献
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3 MEMS陀螺仪的工艺
基于MEMS陀螺仪和其他陀螺解决方案(例如光纤陀螺、环形激光陀螺、半球谐振陀螺和石英陀螺仪)相比具有了许多关键的优势:低成本、非常小的形成因子、轻量级、在严酷环境下的可靠性和低功耗.MEMS陀螺仪工艺是基于经历几十年的发展已经成熟的半导体批量生产设备.近两年为适应高性能MEMS陀螺仪发展的需要... 相似文献
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为提高MEMS陀螺的使用精度,本文基于微小型稳定平台应用背景设计了高精度MEMS陀螺信号调理电路,实验表明该电路提升了陀螺仪的使用精度。本文设计的调理电路采用高速24位Δ-Σ型A/D转换电路和高精度差分放大器对陀螺信号进行处理。基于MEMS陀螺仪搭建了两轴陀螺组件,并将两轴陀螺组件安装于高精度三轴转台,进行测试。采集MEMS陀螺模拟输出和数字输出数据,分别进行Allan方差分析。结果表明:该调理电路使X轴MEMS陀螺零偏不稳定性指标提升13.63%,Y 轴MEMS陀螺零偏不稳定性指标提升19.347%。 相似文献
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一种新型的 WLCSP 为 MEMS 器件有源区上面提供一个集成腔室。这种封装是专为具有机械运动元件的微机械器件设计的,如微反射镜、陀螺仪及加速检测器等。 相似文献
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提出了一种面向微惯性测量单元(Micro-IMU)应用的微电子机械系统(MEMS)三维可折叠结构,其主要组成部分包括绝缘层上硅(SOI)基底、聚酰亚胺柔性链、金属线以及MEMS多环陀螺仪。文章基于有限元仿真技术,分析了可折叠结构及器件的可行性。基于SOI一体化MEMS技术,将核心传感器的制作工艺与折叠结构工艺相结合,在结构中搭载单轴圆盘多环谐振微陀螺,利用柔性铰链实现结构的三维折叠以及各个传感器之间的电互连,实现单轴惯性传感器的集成,制备出体积为1cm3、质量为250mg的搭载多环谐振微陀螺的三维可折叠系统。 相似文献
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对目前到 2 0 0 5年的微机电系统的技术和市场发展做了初步的预测 ,详细讨论了可能的市场领域及其对微机械技术发展的要求。认为 2 0 0 5年后 ,国产微机械产品将具备相当的市场规模 相似文献
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Bryzek J. Roundy S. Bircumshaw B. Chung C. Castellino K. Stetter J.R. Vestel M. 《Circuits and Devices Magazine, IEEE》2006,22(2):8-28
Microelectromechanical systems (MEMS) are a foundation for a broad range of mechanical, chemical, optical, and biotech products (sensors, microstructures and actuators) fabricated as integrated circuits on (primarily) silicon wafers in a batch mode. Commercial MEMS products include pressure sensors, acceleration sensors, gyros, ink-jet nozzles, read-write head positioners in hard drives, and digital light processors (DLPs) in projectors and television sets. The first four decades of MEMS development created a US$8 billion market. During the next decade, the MEMS market is estimated to increase by US$32 billion. Based on the presented overview of emerging MEMS sensors and microstructures, such a magnitude of growth is definitely possible. 相似文献
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介绍了微型驻极体(ECM)与微机电(MEMS)数字传声器的技术原理及在消费数码领域的应用,综述了微型数字传声器技术的发展过程与市场分析。 相似文献
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Applications of MEMS in surgery 总被引:1,自引:0,他引:1
REBELLO K.J. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》2004,92(1):43-55
In the past few decades, microelectromechanical systems (MEMS) have found themselves being adopted into a wide variety of fields and disciplines. Recently there has been an increased interest in the use of MEMS for surgical applications. MEMS technology has the potential to not only improve the functionality of existing surgical devices, but also add new capabilities, which allow surgeons to develop new techniques and perform entirely new procedures. MEMS can improve surgical outcomes, lower risk, and help control costs by providing the surgeon with real-time feedback on the operation. This paper discusses the challenges MEMS face in the medical device market along with current applications and future directions for the technology. 相似文献
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A silicon pressure sensor is one of the very first MEMS components appearing in the microsystem area.The market for the MEMS pressure sensor is rapidly growing due to consumer electronic applications in recent years.Requirements of the pressure sensors with low cost,low power consumption and high accuracy drive one to develop a novel technology.This paper first overviews the historical development of the absolute pressure sensor briefly.It then reviews the state of the art technology for fabricating crystalline silicon membranes over sealed cavities by using the silicon migration technology in detail.By using only one lithographic step,the membranes defined in lateral and vertical dimensions can be realized by the technology.Finally,applications of MEMS through using the silicon migration technology are summarized. 相似文献