The EH4-Electromagnetic Image System is a system which can automatically acquire and process electromagnetic data.It combines CSAMT with MT.This paper deals with its theories and main features as well as its application to groundwater exploration in such sandstone areas as some basins in Inner Mongolia , Xingjiang and Yunnan.
伍岳. EH4电磁成像系统在砂岩地区勘查地下水的应用研究[J]. 物探与化探, 1999, 23(5): 335-338,346.
Wu Yue . THE APPLICATION OF EH4-ELECTROMAGNETIC IMAGE SYSTEM TO GROUNDWATER EXPLORATION IN SANDSTONE AREAS. Geophysical and Geochemical Exploration, 1999, 23(5): 335-338,346.