阐述了磁悬浮陀螺寻北仪的寻北原理,将地球自转角速度分解到陀螺坐标系上,分析了在转动机构没有精确转到要求的位置,存在转位误差的情况下所引起的寻北误差,推导出了转位误差与寻北误差之间的关系表达式,为转位误差的补偿提供了理论基础,也为提高寻北速度提供了技术支持。 The principle of north seeking of magnetic gyroscope is introduced. The angular velocity of earth rotation is decomposed into the gyroscope coordinate system. The north seeking error caused by the fact that the rotating mechanism does not turn to the required position accurately and the translocation error exists is analyzed. The expression of the relationship between index error and north search error is deduced, which provides a theoretical basis for the compensation of index error and also provides technical support for increasing the speed of finding north.