基于亥姆霍兹线圈理论的磁场模拟生成装置  

Magnetic Field Generating Device Based on Helmholtz Coils' Theory

作　　者：蔡欣华[1] 张金生[1] 樊宇韬[2] 乔玉坤[1] 

机构地区：[1]第二炮兵工程大学精确制导与仿真实验室,陕西西安710025 [2]第二炮兵工程大学训练部,陕西西安710025

出　　处：《计算机仿真》2014年第7期54-58,72,共6页Computer Simulation

基　　金：飞行器壳体干扰磁场的产生机理及数值模拟(61004128)

摘　　要：地磁匹配导航半实物仿真研究在地磁匹配导航技术的基础理论研究、工程化实现、武器系统定型鉴定等过程中是不可或缺的重要环节。针对地磁匹配导航半实物仿真中需要模拟生成磁场三分量的问题,设计制作了一款基于亥姆霍兹线圈理论的磁场模拟生成装置。首先利用毕奥萨法尔定律推导出线圈轴线上磁场的分布区域,然后用软件仿真得出线圈产生磁场的分布及均匀区域,并在不同的相对变化量下计算出均匀区域的大小。选取无磁材料设计制作磁场模拟生成装置,并进行通电实验。仿真和实验结果证明,所设计的磁场模拟生成装置生成磁场稳定可靠,精度高,均匀区域良好,可以为地磁匹配导航半实物仿真提供均匀可用的三分量磁场。Hardware-in-the-loop simulation of geomagnetic matching navigation plays an important role in the process such as basic theory research, engineering implementation as well as approved weapon system appraisement. In order to generate three-component magnetic field for hardware-in-the-loop simulation of geomagnetic, a magnetic field generating device base on the helmholtz coils＇ theory is designed and produced by nonmagnetic materials. The magnetic field distribution of the axis inside the helmholtz coils is deduced by Biot-Savart law, the magnetic field dis- tribution and the uniformity areas of the coils are gotten by simulation, and the uniformity areas in different relative variables is obtained by calculation. The device is tested by simulation and by experiment respectively, simulation and experiment results show that the proposed device is an effective device with high accuracy, high stability and sat- isfied uniformity areas to provide three-component magnetic field for geomagnetic matching navigation hardware-in- the-loop simulation.

关 键 词：地磁匹配导航 半实物仿真 毕奥萨法尔定律 亥姆霍兹线圈 磁场模拟生成装置 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]