CAJ | 학술논문

静电屏蔽是“电磁场与电磁波”课程静电场教学中的一个重要知识点。本文基于Ansoft工程电磁场有限元分析软件，给出金属罩接地与不接地情况下，对空间电场分布的影响。分析结果表明，闭合的金属罩可屏蔽内部空间以防电磁干扰，接地的金属罩能实现全屏蔽。对场的空间描绘可增加学生对场的感性认识，提高教学效果。
정전병폐시“전자장여전자파”과정정전장교학중적일개중요지식점。본문기우Ansoft공정전자장유한원분석연건，급출금속조접지여불접지정황하，대공간전장분포적영향。분석결과표명，폐합적금속조가병폐내부공간이방전자간우，접지적금속조능실현전병폐。대장적공간묘회가증가학생대장적감성인식，제고교학효과。
Static-shielding is an important knowledge point in the course of Electromagnetic Field and Electromagnetic Wave, An ordinary sphere shielding is an example based on software of Ansoft engineering electromagnetic field finite element analysis, electric field lines will be changed in the event of metal cavum grounding or not. At the same time electric field lines will be changed along a certain line. Results show all closed cavum being grounded is needed in order to achieve all shielding. The teaching and measures can increase the students＂ sensibility cognition on the electromagnetic field theory.