摘要
分析了空间电磁干扰对电镜等电子仪器的影响;讨论了电磁屏蔽的设计和空间磁场测试原理;采用自行设计的线包和微弱电磁场测试技术,分析实测了多家实验室,证明该方法简便易行;对检测输电线路的老化和微弱漏电也具有实际意义.
The interference of faint electromagnetic field with electronic instrument such as electronic microscope is analysis.The basic principle of measurement and shielding of magnetic field in space are describied.A simple and easy measurement method is introduced.
出处
《大学物理》
北大核心
2004年第8期54-55,61,共3页
College Physics
关键词
空间微弱电磁场
电磁干扰
电磁屏蔽
faint electromagnetic field in space
EMI(electromagnetic interference)
electromagnetic shield
