Design Of Electromagnetic Wave Resistivity Logging Toolfor Underground Coal Mine

Electromagnetic wave resistivity logging is an important method in oil logging, but it has not been applied in underground coal mine due to special working conditions and explosion-proof requirements. In this paper, through theoretical analysis and simulation, an electromagnetic wave resistivity logging tool is designed, which is suitable for underground coal mine. The detection of amplitude ratio and phase difference of weak signal is realized, and its performance index meets the actual working conditions.