摘要
城市地区由于存在大量地下金属管道，因而电磁屏蔽效应十分良好。本文介绍了城市环境电磁屏蔽效应的机理及利用小电流电子测试技术实现工程测试的实用测量方法，并给出了测试结果。
The low frequency screening effect against electromagnetic influence is very strong in urban areas because there are a lot of underground metallic pipes. The characteristics of the screening effect are studied and the engineering measuring technology ( low current testing method ) are introduced. Some application results are presented.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1997年第3期37-39,48,共4页
High Voltage Engineering
关键词
城市环境
电磁屏蔽
小电流测试
工程测量技术
city environment\ electromagnetic screening\ low current_testing technology
