A Comparison of the B-Field and dB/dt Responses of Grounded-Wire TEM

摘要：

　　To study the sensitivity of the B-field and dB/dt responses of grounded-wire TEM, we have compared them for 1D results.The modeling results indicated that the B-field data was generally easier to interpret than dB/dt data, since the larger amplitude generally reflected the conductive zones.From the analysis of response characteristics of the B-field data and dB/dt data, we conclude that the B-field data attenuates slowly than dB/dt data in the late time interval, which is better for the detecting the large-depth conductive anomalies.Moreover, the ratio of the signal to the noise for the conductive target is significantly enhanced in the B-field data, while the dB/dt response is reduced to less than the noise level.

关键词： Grounded-wire TEM B-field Sensitivity

作者: Guoqiang Xue Weibin Luo Xin Wu Dongyang Hou

作者单位: The Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sci The Gansu Institute of Geological Survey for Nonferrous Metals, Lanzhou, 730000, China The Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China

会议类型: 国际会议

会议名称: The 8th International Conference on Environmental and Engineering Geophysics (ICEEG 2018)(第八届环境与工程地球物理学国际会议)

会议地点: 杭州

会议语种:英文

页码: 270-274

在线出版日期: 2018-06-10（万方平台首次上网日期，不代表论文的发表时间）