STUDY ON THE TEM RESPONSE DUE TO THE GROUNDED WIRE WITH SHORT-OFFSET

摘要

This study presents a strategy for detecting geological targets in the deeper stratum using the sophisticated detection methods and treatment technologies of TEM which is also fast, efficient and easy to implement. Its main contents are to do the transient electromagnetic detection in the near field and to make the processing and explanation of the observational data with the whole field area theory. Because the observation point is closed to emission source, the non-dipole effect must be adjusted. That is to say, the emission loop are considered as the sum of numerous dipoles, and the field response of the observation point equals the sum of those field responses induced by each dipole of the emission source loop.