1. The maximum magnetic attraction occurs in the direction of the exterior magnetic field while the magnetic repulsion is in the direction vertical to the exterior magnetic field. ����������������ų������ϣ������ų�������������ų�����ֱ�ķ����ϡ�
2. Based on the theory of static magnetic field, the uniform magnetization model of the surface magnetic field on multi pole magnetic drum for magnetic encoder has been built. ���ھ��ų����ۣ������˴ű������༫�Źĵı�¶���ֲ����ȴŻ�ģ�ͣ��õ��˴ű������༫�Źĵı�¶���ֲ�����ʽ��Ϊ�༫�ŹĵIJ����Ż�����ṩ���������ݡ�
3. Based on the theory of static magnetic field, the uniform magnetization model of the surface magnetic field on multi pole magnetic drum for magnetic encoder has been built. ���ھ��ų����ۣ������˴ű������༫�Źĵı�¶���ֲ����ȴŻ�ģ�ͣ��õ��˴ű������༫�Źĵı�¶���ֲ�����ʽ��Ϊ�༫�ŹĵIJ����Ż�����ṩ���������ݡ�
4. The results show that remanence, magnetic permeability and core losses increase after annealing in longitudinal magnetic field, while decrease in transverse magnetic field. ����ų�������Ǿ��Ͻ���о��ʣ�š����ŵ��ʡ���ĺͽ�������С��
5. The distribution of the magnetic flux density in the magnetic field generator which provided traveling magnetic field have been studied. �о����ƶ��ų��������ĵ���������ų��ռ�ֲ����ɣ�
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