Abstract：The existence of magnetic medium in the space around the magnet will change the distribution of magnetic
field around the magnet，in this paper，the annular bonded Nd-Fe-B magnet is taken as the object of study.
Through finite element analysis method，the paper analysis the influence of different Dimensions of annular medium
on magnetic properties of annular bonded NdFeB magnet. By reasonably choosing the structure of the ring for
gathering magnetic field，the magnetic field around the magnet can be concentrated at specific points，and the utilization
ratio of magnetic properties of the magnet can be improved.
许海，郭志伟，肖凯业，郑文. 聚磁环对粘结NdFeB磁体工作气隙磁场影响分析[J]. 粉末冶金工业, 2020, 30(05): 51-54.
XU Hai，GUO Zhi-wei，XIAO Kai-ye，ZHENGWen. Analysis of the ring for gathering magnetic field on working air gap magnetic
field of bonded NdFeB magnet. Powder Metallurgy Industry, 2020, 30(05): 51-54.
2020, Vol. 30 
