龙岩地震台GM4型磁通门磁力仪典型干扰分析

THE TYPICAL INTERFERENCE OF GM4 FLUXGATE MAGNETOMETER IN LONGYAN SEISMIC STATION

摘要: GM4型磁通门磁力仪是"十五"项目中地磁学科主要仪器。龙岩台GM4型磁通门磁力仪主要受到来自铁磁性物质和电磁类型的干扰。由已知干扰类型,对记录曲线典型畸变形态进行对比、分析、总结,可以更好分辨干扰,进行恰当、合理、准确地预处理,保证数据的连续、可靠、精确。

Abstract: GM4 fluxgate magnetometer is the main equipment of geomagnetism in the "Tenth-five year project", the interferences to which are mostly of iron magnetic material and electromagnetic types.According to the given interference types, distortion of observation data is contrasted, analyzed and summarized so as to distinguish and preprocess interferences appropriately, keep the observation as consistent, reliable and accurate as possible.