The Modeling of TEM Responses Simulated by Multi-Transmitter

Abstract:

Using one or two electric dipole transmitters in the Controlled source electromgnetic method, this paper calculate the transient electromagnetic responses of one and two 3D conductive anomalous bodies in the layered earth by varying the number and intensity of the dipole sources. The results of the models show that satisfactory resolution can be achieved when only one dipole source is used. The stronger the intensity of the electric dipole source, the better resolution for the anomalous body for the same offset. When two electric dipole transmitters laid each side of one 3D body, it means that the anomalous body locates in the middle of the sources and the resolution to the target becomes poor. The numerical results of the transient electromagnetic responses of two 3D bodies also support the idea that resolution is not good when two transmitters are used in each side of the targets simultaneously. As the conclusion, in order to get good resolution to the target, multi transmitters laid different side of the geological target should not be used the same time in the field survey.

• Periodical: Advanced Materials Research (Volumes 450-451)
• Pages: 1518-1521
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.450-451.1518
• Online since: January 2012
• Authors: Xin Gong Tang, Wen Bao Hu, Liang Jun Yan
• Keywords: 3-D Forward Modeling, Multi-Transmitter, Transient Electromagnetic Method

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