Abstract：Based on the basic theory of electromagnetic induction and transient electromagnetic method (TEM), we design four equal-circumference models (three rectangle loops with different length-width ratio and one circle loop) . By contrast with these four models, we find that in TEM the equacircumference circle loop has obvious advantages. It has stronger signal intensity and can detect deeper targets in deep-layer data under the circumstances of constant transmitting power and current. The circle loop size has little inlluence on cut-of time. In conclusion, the circle loop has more advantages.
裴建国, 刘鸿福. 瞬变电磁法圆形和方形线框发射效果的比较[J]. 石油地球物理勘探, 2012, 47(增刊1): 156-161.
Pei Jianguo, Liu Hongfu. TEM with rectangle transmitting loops and circle loop. OGP, 2012, 47(增刊1): 156-161.
