Applied processing for calculation of TEM in-loop full-zone apparent resistivity and 1-D inversion of field transferred from dB/dt response observed directly
JIANG Bang-Yuan, DU Qing-Feng
Institute of Geophysical and Geochemical Exploration,CAGS,Langfang 065000,China
Abstract：The voltage response(dB/dt)is wildly used in TEM in-loop configuration; nevertheless, for layered earth,it has several defects in solution, such as unique valued, dual-valued, undefined valued and overshoot and undershoot phenomena. It is hoped that field response has not these defects. So if we want to observe field response directly,SQUID or flux-gate sensor should be added. Therefore the process of transferred dB/dt should be available. Of course it has some other difficult problems in calculation, for examples: how to get the first electromagnetic field strength and applied apparent depth formula. This paper tackles those problems and has solved them.
蒋邦远, 杜庆丰. TEM中心回线电动势响应换算磁场响应求解全区视电阻率及1-D直接反演的实用方法[J]. 物探与化探, 2017, 41(4): 758-768.
JIANG Bang-Yuan, DU Qing-Feng. Applied processing for calculation of TEM in-loop full-zone apparent resistivity and 1-D inversion of field transferred from dB/dt response observed directly. Geophysical and Geochemical Exploration, 2017, 41(4): 758-768.
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