摘要
瞬变电磁法视电阻率的定义和计算主要有早期、晚期和全区视电阻率定义和计算方法,然而根据瞬变电磁法激发场源、工作装置和工作环境的不同,其视电阻率的定义和计算也不相同。笔者总结和评述了各种磁性源不同工作装置的早期、晚期以及全区视电阻率计算方法,同时对隧道、矿井瞬变电磁法中的全空间视电阻率的计算以及考虑关断时间效应的视电阻率的计算等进行总结。在分析各种定义和计算方法的基础上,结合瞬变电磁法的发展应用,对视电阻率的定义和计算提出了几点建议。
The definition and calculation of the apparent resistivity are not the same because of the difference of excitation field sources, working devices and working environments. The calculation methods for apparent resistivity in early-time, late-time and alltime with varying magnetic sources of TEM and different working devices were summarized and reviewed in this paper, and the wholespace apparent resistivity in tunnel and mine TEM in consideration with the turn off time were discussed. Some conclusions and suggestions were proposed based on an analysis of apparent resistivity combined with the development and application of TEM.
出处
《物探与化探》
CAS
CSCD
2012年第6期1034-1039,共6页
Geophysical and Geochemical Exploration
基金
南昌航空大学博士启动基金(EA201008225)
教育部重点实验室开放基金(ZD201129002)
关键词
瞬变电磁法
全区视电阻率
视电阻率计算方法
TEM
whole-space apparent resistivity
calculation method for apparent resistivity
