Computation of Transient Electromagnetic Field from Rectangular Loop over a Layered Earth

摘要：

Large Loop configuration is a rather rapid electromagnetic exploration method in the paper,a new computation technique was developed to evaluate the transient electromagnetic(TEM)fields ofrectangular large loops over layered earth in the method,a rectangular large loop is partitioned and integrated by a few small square loops whose current equal to that of the large loop And in frequency domain,the integration leads the electromagnetic field to be expressed by a standard Hankel transform,and the loop size and shape are incorporated into the integrand by the integration of O-order Bessel function with respect to space variables Transient responses were calculated by cosine transform from the frequency domain resuks The model responses evaluated with the method agree very well with the analytical resuks of half space And resuks from the responses oflayered earth and real data validate the feasibility ofthe method

关键词： Large Loop source rectangular shape 1D TEM sounding modeling

作者: Weng Aihua Liu Yunhe Gao Lingling Chen Yuling

作者单位: Department ofApplied Geophysics,Jilin University,Changchun，China

会议类型: 国际会议

会议名称: The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)

会议地点: 北京

会议语种:英文

页码: 800-804

在线出版日期: 2008-10-23（万方平台首次上网日期，不代表论文的发表时间）