大地电磁信号测量关键技术研究与实现  

Study and Implementation of Key Technology for Magnetotelluric Signal Measurement

作　　者：陈凯[1] 邓明[1] 黄江杰[1] 成天[1] 

机构地区：[1]地下信息探测技术与仪器教育部重点实验室/中国地质大学(北京),北京100083

出　　处：《现代科学仪器》2010年第2期7-9,共3页Modern Scientific Instruments

基　　金："十一.五"863计划重大项目课题-天然气水合物的海底电磁探测技术(2006AA09A201);"十一.五"863计划项目课题-坑(井)-地电阻率成像技术及系统研制(2007AA06Z130)

摘　　要：大地电磁(Magnetotelluric,MT)方法是探测地下介质电性参数的有效手段之一,MT仪器装备的性能是实现这一方法的关键所在。长期以来MT仪器设备依赖于国外进口,为实现自主创新,通过解决众多关键技术,其中包括低噪声技术、高精度技术、低功耗技术、低时漂技术、大容量存储技术,实现了完全自主知识产权的新型大地电磁采集器。通过与国外同类仪器的野外对比试验表明,仪器指标满足标准MT测量要求。Magnetotelluric（MT）method is the effective means to detect underground Conductive Structure,MT instrumentation equipment performance is the key to achieving this approach.For a long time MT equipment is dependent on foreign imports.For the realization of independent innovation,by addressing a number of key technologies,including low-noise technology,high-precision technology,low-power technology,low drift technology,high-capacity storage technology,the new magnetotelluric collector with a fully self-Intellectual Property was achieved.By comparison with similar foreign field comparison tests,the results showed that the instruments have met MT measurement requirements.

关 键 词：大地电磁 数据采集 低噪声 高精度 低时漂 

分 类 号：P631.325[天文地球—地质矿产勘探]