Evaluation of Measuring Time and Signal-Noise Ratio in Central Loop TEM Design

Evaluation of induced electromotive force by forward modeling based on collection of full set stratigraphic conductivity logs, and measuring time by inverse modeling, determination of loop size relative to maximum output current according to noise level, maximum voltage of transmitter and wire resistivity are important substance in transient electromagnetic sounding design and important link of ensure detecting depth, acquisition of good data and completion of geological exploration. It has been shown from actual applications that electrical inversion profile of well-arranged stratum and clear-structured geology is available to be achieved based on qualified actual measured curves.