一种动力调谐陀螺仪大加矩力矩器设计  

Design of the Torquer with High Scale Factor for DTG

作　　者：韦宇聪 吕英豪 罗麟经 

机构地区：[1]北京自动化控制设备研究所,北京100074

出　　处：《导航定位与授时》2015年第3期108-113,共6页Navigation Positioning and Timing

摘　　要：为满足捷联惯性导航系统用动力调谐陀螺仪大跟踪速率的要求,提出了一种新的力矩器永磁磁钢结构。新结构参考Halbach永磁体阵列,在常规的双径向充磁磁环中间增加了一个轴向充磁磁环。利用电磁场仿真软件Maxwell对典型结构和新结构力矩器的工作气隙磁场进行分析,分析结果表明,新结构力矩器的力矩系数可提高36%。陀螺仪样机的实测结果验证了分析的结果。A new structure of the permanent magnet for torquer is put forward to satisfy the requirement of high processing rate of the DTG for the strap-down inertial navigation. Refer to the Halbach magnet array, an axial-magnetized magnetic ring is mounded between the two radial-magnetized magnetic rings in the new torquer. The magnetic field in the air gap of the typical torquer and the new torquer is analyzed using the FEA software Maxwell. According to the analysis, the scale factor of the new torquer can increase 36%. The result of the analysis is verified by the test of the DTG.

关 键 词：动力调谐陀螺仪 力矩器 Halbach永磁体阵列 磁场 

分 类 号：V249[航空宇航科学与技术—飞行器设计]