摘要
本文系统介绍了连续电磁剖面法的基本原理、野外数据采集、资料处理方法以及V5- 2 0 0 0系统的特点和性能。V5 - 2 0 0 0系统采用卫星同步技术 ,确保电场和磁场同步采集 ,从而大大提高野外工作效率。此外 ,一方面 ,野外布极以电偶极子首尾相连的阵列形式覆盖整条剖面 ,密集采集多道电场 ,因此扩大信息量 ,可以较详细地反映地下介质的电性特征 ;另一方面 ,在资料处理时 ,采用低通滤波的方法 ,有效地压制了由于浅层电性不均匀给大地电磁资料带来的干扰 ,使解释更加可靠。准噶尔盆地、柴达木盆地。
The basic principle,data acquision and data processing of the continuous electromagnetic profiling method(CEMP)and the function and property of v5-2000 system are minutely introduced in this paper. The satellite synchronization technology is used in v5-2000 system in order that the data acquisition of EM components is carried out simultaneously. So the efficiency of fieldwork is improved greatly. On one hand ,the multi-channel electrical components along the profile are simultaneously measured with an array of electrical dipoles which are placed end-to-end along a traverse line .In this way , the information can be greatly expanded comparing to that in traditional MT method. So that, the electrical section can be provided more in detail. On the other hand, using the low pass filtering in the data processing can be restrained the disturbing from the conductive inhomogeneity near the surface to MT effectively. Therefore the results from CEMP will be more reliable. Three CEMP exploration projects in Zhungaer, Chaidamu, Talimu basins have been proved to be effective.
出处
《资源调查与环境》
2002年第3期205-213,共9页
Resources Survey & Environment
