分量核旋仪偏置电流对磁偏角测量的影响分析

地震 ›› 2002, Vol. 22 ›› Issue (2): 60-66.

分量核旋仪偏置电流对磁偏角测量的影响分析

冯志生¹, 杨冬梅², 夏忠¹, 张秀霞¹, 梅卫萍¹, 嵇才键¹

1.江苏省地震局,江苏南京 210014;
2.中国地震局地球物理研究所,北京 100081

收稿日期:2001-05-28 修回日期:2001-09-06 出版日期:2002-04-30 发布日期:2021-12-21
作者简介:冯志生(1961-),男,江苏海安人,副研究员,1987年获硕士学位,主要从事震磁关系和数字前兆台网观测研究。
基金资助:
“九五”国家科技攻关项目(96-913-08-01-05)

Analysis of observation error of thedeclination with bias current by vector proton precession magnetometer

FENG Zhi-sheng¹, YANG Dong-mei², XIA Zhon¹, ZHANG Xiu-xia¹, MEI Wei-ping¹, JI Cai-jian¹

1. Seismological Bureau of Jiangsu Province, Nanjing 210014, China;
2. Institute of Geophysics, CSB, Beijing 100081, China

Received:2001-05-28 Revised:2001-09-06 Online:2002-04-30 Published:2021-12-21

摘要/Abstract

摘要： 从理论上定量地分析了FHD-1型分量核旋仪的偏置电流对磁偏角观测值的影响,结果表明偏置电流的漂移对磁偏角观测值的影响随偏置电流的漂移量的增大而增大、也随磁偏角观测值的增大而增大,该结果对指导台站提高该仪器磁偏角观测值的精度有一定意义。

关键词: 核旋仪, 磁偏角, 测量误差, 偏置电流

Abstract: This paper studied the observation error of declination with bias current by FHD-1 proton precession magnetometer in theory. The result indicates that the error is increased with the value of declination and bias current drift, which has significance to improve the precision of declination observation by that magnetometer at stations.

Key words: Proton precession magnetometer, Declination, Observation error, Bias current

中图分类号:

P315.61

冯志生, 杨冬梅, 夏忠, 张秀霞, 梅卫萍, 嵇才键. 分量核旋仪偏置电流对磁偏角测量的影响分析[J]. 地震, 2002, 22(2): 60-66.

FENG Zhi-sheng, YANG Dong-mei, XIA Zhon, ZHANG Xiu-xia, MEI Wei-ping, JI Cai-jian. Analysis of observation error of thedeclination with bias current by vector proton precession magnetometer[J]. EARTHQUAKE, 2002, 22(2): 60-66.