电偶源频率电磁测深中的E_x分量  

E x COMPONENT IN THE FREQUENCY ELECTROMAGNETIC SOUNDING OF DOUBLE SOURCE

作　　者：陈明生[1] 阎述[1] 陶冬琴[1] 

机构地区：[1]煤炭科学研究总院西安分院

出　　处：《煤田地质与勘探》1998年第6期60-66,共7页Coal Geology & Exploration

基　　金：国家自然科学基金

摘　　要：在电偶源频率电磁测深（包括ＣＳＡＭＴ）的各场量中，电场Ｅｘ分量具有分辨率高、观测信噪比高、不需作近场改正等优点。在有地表电性不均匀引起的静态偏移情况下，可通过转换相位消除静态偏移。因此在资料处理与解释中可不局限于比值电阻率的模式，使频率电磁测深具有更大的灵活性与适应性。In the various field components of frequency electromagnetic sounding of point double source (including CSAMT),the point field E x component has the advantages such as higher resolution,higher observation signal to noise ratio,need not near field correction and so on.In the case of static offset resulted by the surface electricity inhomogereity,the static offset could be removed by the phase transfer.Therefore,the data processing and interpretation could not be limited to the mode of ratio resistance,resulting that the frequency electromagnetic sounding has larger flexibility and adaptability.

关 键 词：频率电磁测深 近场改正 静态偏移 电偶源 测深法 

分 类 号：P631.322[天文地球—地质矿产勘探]