天然电磁场日变规律实验观测  

Experimental Observations on Diurnal Variation Law of Natural Electromagnetic Field

作　　者：张辉[1] 杨天春[1] 葛洪亮[1] 

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《四川理工学院学报（自然科学版）》2013年第1期38-42,共5页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：湖南省自然科学基金项目(12JJ3035);湖南省科技计划项目(2011SK3195);湖南科技大学2012年大学生科研创新计划(SRIP)项目(SYZ2012020)

摘　　要：开展了天然交变电磁场日变规律的实验观测工作,由此探讨日变场的变化规律,以及天然电场选频法的基本原理。在同一地点或两个分离的点上,采用两台仪器对天然电磁场的日变情况进行同点同时观测和异点同时观测,获得日变场的变化曲线。分析采集结果,在工作区范围内天然交变电磁场具有同源性和波动性的变化规律。结合实例,叙述了野外采集和数据处理的一些方法,以压制背景场干扰而造成的假异常。Experimental observations on daily change of natural alternating electromagnetic fields are carried out. The daily field variation and the basic principles of the natural electric field frequency selection method are discussed. Daily variation field change curve is obtained in terms of the simultaneous observation of natural electromagnetic field variable condition in the same place or in two separate points by two instruments. According to the analysis result, the natural alternating electromagnetic field has homologous variation and volatility in the working area. Combined with the example, some methods of data-collection and data processing are stated to suppress the false abnormal caused by background interference.

关 键 词：天然电场选频法 日变规律 声频大地电场法 

分 类 号：P631.3[天文地球—地质矿产勘探]