临汾中心地震台FHD质子磁力仪噪声干扰分析  

Noise Interference Analysis of FHD Proton Magnetometer at Linfen Central Seismic Station

作　　者：张聪聪[1,2] 靳宝萍 ZHANG Cong-cong;JIN Bao-ping(Linfen Central Seismic Station, Shanxi Earthquake Administration, Linfen, Shanxi 041000, China;National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China)

机构地区：[1]山西省地震局临汾中心地震台,山西临汾041000 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2020年第3期30-33,共4页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-2019)。

摘　　要：临汾中心地震台FHD质子磁力仪噪声值从2020年1月开始出现逐渐增大的迹象。文章从FHD观测原理谈起,对噪声产生的原因进行分析,结合台站运维人员对产生噪声原因的排查,最终判断噪声增大的原因为探头电感量设置较小。修改并选出合适的探头电感量后噪声值下降,数据曲线变得光滑。The noise value of FHD proton magnetometer at Linfen Central Seismological Station has gradually increased since January 2020.Starting from the FHD observation principle,this paper analyzes the causes of noise,and combined with the investigation of station operation and maintenance personnel on the causes of noise,it is finally determined that the reason for the increase of noise is that the inductance of the probe is small.After modifying and selecting the appropriate probe inductance,the noise value decreases and the data curve is smooth.

关 键 词：质子磁力仪 噪声 探头电感量 

分 类 号：P315.62[天文地球—地震学]