| 基于磁传感器组合的高旋弹横滚角测量方法 |
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| 引用本文： | 李玎,赵成刚,卜雄洙.基于磁传感器组合的高旋弹横滚角测量方法[J].南京理工大学学报(自然科学版),2009,33(3). |
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| 作者姓名： | 李玎 赵成刚 卜雄洙 |
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| 作者单位： | 1. 南京理工大学,机械工程学院,江苏,南京,210094
2. 安阳工学院,机械工程系,河南,安阳,455000 |
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| 摘 要： | 针对三轴磁传感器与加速度计组合对于弹体的姿态测量存在难以消除或补偿掉有害加速度的问题,设计了一种磁传感器组合的布阵方式.两磁传感器成一定角度安装,并根据传感器布阵方式提出了两种新的解算方法,即零交叉法和极值比值法,使之适用于有线加速度的载体.推导了磁场在磁传感器敏感轴方向上的数学表达式,论证了两种解算方法并进行了数值仿真,在此基础上比较了两种方法,并分析了其误差产生的原因.结果表明:两种方法均适用于高转速弹体横滚姿态和转速的测量;与零交叉法相比,极值比值法获得的姿态角信息多且是单值的,解算的姿态角更为准确且误差衰减较快,优于零交叉法.
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| 关 键 词： | 传感器 磁性材料 弹丸 磁传感器组合 高转速弹体 横滚角 转速 |
Roll Angle Measurement of High-spinning Projectile Based on Magnetic Sensors Unit |
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| LI Ding,ZHAO Cheng-gang,BU Xiong-zhu.Roll Angle Measurement of High-spinning Projectile Based on Magnetic Sensors Unit[J].Journal of Nanjing University of Science and Technology(Nature Science),2009,33(3). |
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| Authors: | LI Ding ZHAO Cheng-gang BU Xiong-zhu |
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| Institution: | 1.School of Mechanical Engineering;NUST;Nanjing 210094;China;2.Mechanical Engineering Department;Anyang Institute of Technology;Anyang 455000;China |
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| Abstract: | In allusion to the problem that the harmful acceleration consisting of a three-axis magnetic sensor and accelerometers on projectile to measure attitude angles is difficult to remove or compensate,a new scheme comprising magnetic sensors installed in a particular way is designed.Two novel calculation methods called zero crossing method and the ratio of extremum method are adopted based on the configuration of sensors,make the scheme be applicable for the carrier which has linear acceleration.The mathematica... |
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| Keywords: | sensors magnetic materials projectiles magnetic sensors unit high-spinning projectiles roll angles spin rates |
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