FHD仪偏置线圈电流反向对D分量基线值的影响及修正方法  

Influence of Electrical Current Reverse in Coil of FHD Instrument on Baseline of D Component and Methods for Correction

作　　者：高登平[1] 李细顺[1] 胡秀娟[1] 解用明[2] 王利兵[1] 杨锐[1] 

机构地区：[1]河北省地震局红山基准台,河北红山055350 [2]河北省地震局,河北石家庄050021

出　　处：《山西地震》2007年第3期34-36,共3页Earthquake Research in Shanxi

摘　　要：在地磁连续观测中,需要通过分析计算观测数据对仪器的工作状态作出正确的判断,介绍了判断FHD仪偏置线圈电流是否反向的2种方法,研究了反向前后基线值的变化情况并提出了修正方法。For continuously geomagnetic observation, correct judgment should be made to working states of a instrument through analyzing and calculating observed data. In this paper, two methods to judge if the electrical current in bias coil of a FHD Instrument is inverse and some methods to make correction, based on the variation of baseline value before and after the inverse, are introduced.

关 键 词：基线 FHD仪 偏置线圈 修正方法 

分 类 号：P318.6[天文地球—固体地球物理学]