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| 分量核旋仪偏置电流对磁偏角测量的影响分析 | |
| 引用本文： | 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. |
| 作者姓名： | 冯志生 杨冬梅 夏忠 张秀霞 梅卫萍 嵇才键 |
| 作者单位： | 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 |
| 基金项目： | “九五”国家科技攻关项目 ( 96 -91 3-0 8-0 1 -0 5 ) |
| 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 |
| 文章编号： | 1000-3274(2002)02-0060-07 |
| 收稿时间： | 2001-05-28 |
| 修稿时间： | 2001年5月28日 |
Analysis of observation error of the declination with bias current by vector proton precession magnetometer |
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| FENG Zhi sheng ,YANG Dong mei ,XIA Zhon ,ZHANG Xiu xia ,MEI Wei ping ,JI Cai jian.Analysis of observation error of the declination with bias current by vector proton precession magnetometer[J].Earthquake,2002,22(2):60-66. | |
| Authors: | FENG Zhi sheng YANG Dong mei XIA Zhon ZHANG Xiu xia MEI Wei ping JI Cai jian |
| Institution: | 1. Seismological Bureau of Jiangsu Province, Nanjing 210014, China; 2. Institute of Geophysics, CSB, Beijing 100081, China |
| 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 s significance to improve the precision of declination observation by that magnetometer at stations. |
| Keywords: | Proton precession magnetometer Declination Observation error Bias current |
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