水平电偶源充电电磁法正常场研究及其应用

详细信息

STUDY AND APPLICATION OF NORMAL FIELD OF EM CHARGE METHOD OF HORIZONTAL ELECTRIC DIPOLES

摘要: 地下水平电偶源在地面上形成的正常电磁场的研究是电法勘探的重要理论问题。本文给出了地下半空间存在低阻薄层时的地下水平电偶源在地面上形成的电磁场各分量的表达式,并由此对正常场进行了计算、分析,对实测资料进行了处理和解释。结果表明,在低频情况下,地下水平电偶源在地面上形成的磁场受低阻覆盖层和水平导电层的影响小,具有稳定的特征。
- 充电电磁法 /
- 水平电偶源 /
- 低阻薄层 /
- 正常场
Abstract: In this paper,the formulas of components of EM field produced by horizontal electric dipoles in underground half space with low resistance layer are given. And theoretical curves of normal field have been computed and analyzed. Prac- tice data have been explained used the results. The results show that the magnetic field are stable and the effects of low resis- tance layer are small in low frequency.
- EM charge method /
- horizontal electric dipoles /
- normal field /
- thin conductive formation