一种基于GMI传感器的载体运动速度检测方法  

A Kind of Carrier Velocity Detection Method Based on GMI Sensor

作　　者：韩超[1] 邓甲昊[1] 叶勇[1] 

机构地区：[1]北京理工大学机电学院机电动态控制重点实验室,北京100081

出　　处：《北京理工大学学报》2016年第2期153-156,共4页Transactions of Beijing Institute of Technology

基　　金：亚太经合组织合作基金资助项目(APEC2012-01)

摘　　要：基于GMI效应磁传感器的高灵敏度、高响应度,提出了一种磁传感器载体运动速度检测算法.通过在载体上以一定距离安装两个GMI传感器对磁性目标探测,根据探测得到的磁性变化曲线,运用间接互相关算法求得曲线的对应时间差,从而得到载体的运动速度.通过实验验证,本方法的速度误差可以控制在10%以内,且对数10m/s数量级的载体速度满足其实时性要求.In order to detect the carrier velocity,a detection algorithm was presented taking the advantage of the high sensitivity and high responsively of the GMI effect magnetic sensor.Two GMI sensors were placed on the carrier at a certain distance to detect magnetic target.According to the detected value of the magnetic variation,the corresponding curvilinear time difference could be gotten with the indirect cross-correlation algorithm,so the carrier velocity could be obtained.Experiment result show that the velocity error can be controlled within 10% with the method,and it meets the real-time requirements under the carrier velocity about several decameters per second.

关 键 词：GMI传感器 载体速度 间接互相关 磁性目标 检测算法 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]