By comparing and analyzing the data from the ZD9A-2B and GEF-2 geo-electrical observation apparatus at Yingcheng earthquake monitoring station,it was found that the normal daily change and forms of various disturbances in the geoelectric field recorded by them were consistent.GEF-2 has a wider measurement span and contains richer high-frequency information.Meanwhile,it can capture more pulse current signals and has stronger resistance to lightning interference.The difference in the geoelectric field preferred orientation calculated from the observation data of the two instruments is not significant.The study result show that it may be helpful to find more pulse signals of geoelectric field with geoelectric observation apparatus which has higher sampling rate.
关键词
地电场仪/脉冲电信号/ZD9A-2B/GEF-2
Key words
geoelectric observation apparatus/pulse electric signal/ZD9A-2B/GEF-2
维普
万方数据