基于非正交磁传感器组合的旋转弹体横滚角测试  

Roll Angle Measurement of Spinning Projectile Based on Non-orthogonal Magnetic Sensors

作　　者：李玎[1,2] 卜雄洙[2] 

机构地区：[1]江苏技术师范学院,江苏常州213001 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《兵工学报》2010年第10期1316-1321,共6页Acta Armamentarii

摘　　要：针对微惯性传感器测量误差随时间严重发散且量程不能满足旋转弹体横滚角测量的要求,采用磁传感器组合对旋转弹体的横滚角测量及工程可实现性进行了研究。对于不同角度、位置安装的磁传感器,给出了其敏感轴上的数学表达式,并且利用两个非正交安装的磁传感器输出的极值之比与俯仰角呈固定关系进行姿态角求解。分析了产生奇异的条件和使用磁传感器进行横滚角测量的可行性,并对传感器布阵方案及解算方法进行了半实物实验。实验结果表明,俯仰角和横滚角的解算误差基本控制在1°以内,此测量方案适用于偏航角变化不大的旋转弹体。In allusion to some deficiencies of micro inertial sensors,of which the measuring error spreads with time and the measuring range can not meet the requirement of roll angle measurement of spinning projectile,the roll angle measurement of spinning projectile by using the magnetic sensors and its engineering implementation feasibility were researched.A mathematical expression was given for the magnetic sensors installed at the different angles and positions,and the attitude angles were calculated according to the ratio of extreme value of the two non-orthogonally installed magnetic sensors which has corresponding relationship with pitch angle.The condition of singularity and the feasibility of roll angle measurement using the magnetic sensors were analyzed,and the half size hardware-in-the-loop experiment was accomplished based on the sensor configuration and calculation method.The experimental results show that the resolved errors of pitch angle and roll angle can be controlled within the range of 1°,this measurement scheme can apply to the spinning projectile which has a small variety of yaw angle.

关 键 词：电磁学 地磁 旋转弹体 磁传感器 横滚角 

分 类 号：TJ765.23[兵器科学与技术—武器系统与运用工程]