吴逸汀, 盛卫星, 韩玉兵, 马晓峰, 张仁李. 金属材料低频磁场屏蔽效能研究[J]. 电波科学学报, 2015, 30(4): 673-678. doi: 10.13443/j.cjors.2014081002
      引用本文: 吴逸汀, 盛卫星, 韩玉兵, 马晓峰, 张仁李. 金属材料低频磁场屏蔽效能研究[J]. 电波科学学报, 2015, 30(4): 673-678. doi: 10.13443/j.cjors.2014081002
      WU Yiting, SHENG Weixing, HAN Yubing, MA Xiaofeng, ZHANG Renli. The simulation and testing analysis on low-frequency magnetic shielding effectiveness of metal materials[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2015, 30(4): 673-678. doi: 10.13443/j.cjors.2014081002
      Citation: WU Yiting, SHENG Weixing, HAN Yubing, MA Xiaofeng, ZHANG Renli. The simulation and testing analysis on low-frequency magnetic shielding effectiveness of metal materials[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2015, 30(4): 673-678. doi: 10.13443/j.cjors.2014081002

      金属材料低频磁场屏蔽效能研究

      The simulation and testing analysis on low-frequency magnetic shielding effectiveness of metal materials

      • 摘要: 通过分析低频电磁波的屏蔽效能公式,综合考虑材料电磁、物理等特性,选取了五种金属作为屏蔽机箱的材料.分别测试了材料的电导率和相对磁导率,通过屏蔽公式和仿真软件比较了它们的低频磁场屏蔽效能.选用三种金属加工成屏蔽机箱,进行低频磁场屏蔽效能.测试机箱的低频磁场屏蔽效能实测结果与仿真结果基本一致.结果表明:坡莫合金对低频磁场的屏蔽效能最好,0Cr13不锈钢屏蔽效能比坡莫合金稍差,但比其他材料要好,而且其性价比高,可以用于一些需要一定低频磁场屏蔽的场合.

         

        Abstract: By analyzing the low-frequency (LF) magnetic shielding effectiveness formulation, five metal materials were chosen as shielding box with consideration of the electromagnetic properties,physical properties,etc. The conductivity and relative permeability of each material respectively. According to the shielding effectiveness formulation and the simulation results,the shielding effectiveness of different materials was investigated and compared. Then,we also measured LF magnetic shielding effectiveness of three metal boxes in different frequencies. It turns out that testing and simulation results match well. The results show that permalloy box owns the best LF magnetic shielding effectiveness. Although 0Cr13 behaves slightly worse than permalloy in LF magnetic shielding effectiveness,it is better than all other materials. In addition,0Cr13 has good cost performance. Consequently,it is advisable to apply 0Cr13 as the material of shielding box when a certain LF magnetic shielding effectiveness is demanded.

         

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