满洲里地震台FHDZ-M15地磁总场与分量组合观测系统秒采样干扰问题的分析  

Analysis of the Second Sampling Interference Problem of the FHDZ-M15 Geomagnetic Total Field and Component Combined Observation System at Manzhouli Seismic Station

作　　者：朱天元 舒雷 乌兰 Zhu Tian-yuan;Shu Lei;Wu lan(Manzhouli Seismological Station, Seismological Bureau of Inner Mongolia Autonomous Region, Manzhouli City, Inner Mongolia 021400,China)

机构地区：[1]内蒙古自治区地震局满洲里地震台,内蒙古满洲里市021400

出　　处：《山西地震》2020年第4期14-21,共8页Earthquake Research in Shanxi

基　　金：内蒙古自治区地震局局长基金(课题编号:2018JC03)。

摘　　要：运用满洲里地震台FHDZ-M15地磁总场与分量组合观测系统2015年8月至2020年3月的秒采样数据资料,分析M15组合观测系统的观测数据特征,并与同一观测室内GM4磁通门磁力仪的观测数据做对比。采取加热主机所在仪器室、给探头及模拟装置除潮和更换供电线路等实验方法。结果显示,M15组合观测系统所受干扰分为阶跃与尖峰两种形态,阶跃形态干扰由高压直流输电和车辆造成,尖峰形态干扰由主机所在仪器室内温度过低和输电线路老化造成。The second sampling data of FHDZ-M15 combined geomagnetic field and component observation system of Manzhouli seismic station from August 2015 to March 2020 were used to analyze the observation data characteristics of the combined observation system of M15,and the data were compared with the observation data of GM4 fluxgate magnetometer in the same observation room.The experimental methods of heating the instrument room where the host is located,dehumidifying the probe and the analog device and replacing the power supply line are adopted.The results show that the interference of the M15 combined observation system is divided into two forms:step and spike.The step interference is caused by HVDC and vehicles,and the spike interference is caused by excessively low temperature in the instrument room where the host is located and transmission line aging.

关 键 词：干扰分析 地磁总场 分量组合观测系统 秒采样 

分 类 号：P315.63[天文地球—地震学]