搜索结果: 1-5 共查到“知识库 机械工程 MEMS”相关记录5条 . 查询时间(0.063 秒)
MEMS陀螺随机漂移误差系数的动态提取
随机误差系数 窗函数 Allan方差
2015/2/15
针对传统Allan方差提取微机电系统(MEMS)陀螺随机误差系数仅得到近似均值,与实际中其随时间在均值附近波动不相符的缺点,提出一种动态提取MEMS陀螺随机误差系数的方法。该方法将窗函数引入Allan方差计算,不仅能够正确提取MEMS陀螺随机误差系数,而且还能得到MEMS陀螺随机误差系数的时间变化曲线,这将有利于MEMS陀螺的性能分析和误差补偿。实验证明该方法提取的MEMS陀螺随机误差系数的时间变...
研究微机械陀螺仪的零位误差对提高惯性导航精度具有重要意义。论文采用Allan方差分析法对MEMS陀螺仪的零位误差做了综合评定,提出了一种动态的零值偏移误差补偿算法来滤除陀螺仪的零值偏移误差;论文还对启发式漂移消减法(HDR,heuristic drift reduction)做了改进,有效的提高了原算法的补偿精度。最后,再次采用Allan方差分析法对补偿后的零位误差进行评定,并以Voyager-I...
Novel Resonant Accelerometer with Micro Leverage Fabricated by MEMS Technology
accelerometer resonator micro-fabrication sensor
2011/3/23
For the purpose of improving the precision of the inertial guidance system, it is necessary to enhance the accuracy of the accelerometer. Combining the micro-fabrication processes with resonant sensor...
Novel Resonant Accelerometer with Micro Leverage Fabricated by MEMS Technology
accelerometer resonator micro-fabrication sensor
2011/2/24
For the purpose of improving the precision of the inertial guidance system, it is necessary to enhance the accuracy of the accelerometer. Combining the micro-fabrication processes with resonant sensor...