【作者】 翟福强； 孙爱芝； 关媛媛； 陈云志；

【Author】 ZHAI Fu-qiang, SUN Ai-zhi, GUAN Yuan-yuan, CHEN Yun-zhi (School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)

【机构】 北京科技大学材料科学与工程学院；

【摘要】 如何能让永磁体提供一个高强度、稳定的磁场成为当前磁学研究的基础性工作,同时也是迫切需要解决的问题。选择在开放磁路状态下,通过改变导磁介质的相对面积和厚度,分别从导磁介质相对面积影响因素和厚度影响因素研究了NdFeB永磁体提供的外磁场磁场强度的变化规律。进而得出,当NdFeB永磁体表面吸附高导磁率、特定尺寸的导磁介质时,NdFeB永磁体能提供一个高强度、稳定的磁场。更多还原

【Abstract】 How can a permanent magnet to provide high-intensity, steady magnetic field has become the basis of research work, but also the urgent need to be addressed. Under the open magnetic circuit, by changing the relative size and thickness of magnetic medium in this paper, respectively, the changes in law of permanent magnet magnetic field intensity were studied from the relative size factor and thickness factor of the magnetic medium. Finally, when adsorped a high-permeability and in the certain shape of magnetic media, the NdFeB permanent magnet can provide a high-intensity strength, stability of the magnetic field.更多还原