永安台FHD-2B型质子磁力仪观测概况与仪器维护  

Observations and Instrument Maintenance of the FHD-2B Proton Magnetometer at Yongan Geomagnetic Station

作　　者：全建军[1,2] 夏忠[3] 刘礼诚[1] 陈珊桦[4] 刘水莲[1] 陈美梅 

机构地区：[1]福建省地震局永安地震台,福建永安366000 [2]福建省地震局南平仪器维修分中心,福建南平353000 [3]江苏省地震局新沂地震台,江苏新沂221400 [4]福建省地震局泉州基准地震台,福建泉州363000

出　　处：《地震工程学报》2015年第B07期101-107,共7页China Earthquake Engineering Journal

基　　金：2014年福建省地震局地震台站科技基金项目(SF201406);2015年中国地震局"地震监测;预报;科研三结合"课题(151302)

摘　　要：通过对永安台FHD-2B型质子磁力仪运行3年来观测概况的介绍,总结日常观测过程中可能遇到的仪器故障或问题,并初步探讨解决仪器问题的经验办法,以提高仪器维护的质量。A geomagnetic FHD-2B proton magnetometer was installed at the Yongan station in October 2009. After years of stable operation, a large set of reliable precursor observation data has been genera- ted. The instrument is operating smoothly at present, and the data profiles contain few burrs, small lines, and low noise. However, the instrument may encounter a variety of problems in its daily observa- tion process, influencing its normal operation. In order to improve the quality of the instrumenfs mainte- nance, it is necessary to conduct a summary of the commonly occurring instrument problems and their corresponding solutions. The FHD-2B proton magnetometer comprises communications technology, computer technology, data acquisition, and computer software processing： the magnetometer is a set of integrated and comprehensive technology. Each functional unit is independent and connected to one an- other, so that the failure of any unit can affect the overall instrument performance, leading to a decrease in the continuous collection rate, accuracy, or quality of the observation data. This study describes a par- ticularly problematic situation at Yongan station, including repair methodology that involves the investi- gation of communication failures and faulty data acquisition for the FHD-2B proton magnetometer data, and the subsequent improvements, so that the readers can share the experience of equipment mainte- nance, as well as the implementation of an improved equipment maintenance program. Interference fac- tors, such as meteorological factors, human disturbances, and unknown reasons, are discussed. The im- proved maintenance program, which enhances the quality of observation data, requires the station staff to document in the instrument observation log, the data preprocessing and the weather changes, provi- ding detailed and reliable information for forecasters to accurately identify and analyze disturbances andseismic anomalies. Scheduled and effective magnetometer equipment maintenance and the keeping of

关 键 词：永安地震台 FHD-2B型质子磁力仪 观测概况 仪器维护 

分 类 号：P315.62[天文地球—地震学]