永安台地磁仪背景噪声影响因素分析
Analysis of Influencing Factors on Background Noise of Yongan Magnetometer
刘水莲 1刘愫昀 1龚薇 2陈俊峰3
作者信息
- 1. 龙岩地震监测中心站,福建 龙岩 364000
- 2. 南平地震监测中心站,福建 南平 353000
- 3. 泉州地震监测中心站,福建 泉州 362000
- 折叠
摘要
通过对观测环境、技术系统、观测仪器、人为噪声等方面的排查,分析影响永安台FHD-2B仪器无故死机和背景噪声的主要因素.结果表明,永安台观测环境良好,梯度符合要求,地磁仪背景噪声过大及无故死机的主要原因为仪器运行时间过长、内部性能下降.通过工控机改造后,故障率大幅度减少,并在更新仪器后数据噪声也大幅改善,有效提升了永安台地磁仪观测资料质量,为台站观测维护提供经验借鉴.
Abstract
This paper investigates and analyzes the main factors that affect the unexplained crash and background noise of Yongan Station FHD-2B instrument from the aspects of observation environment,technical system,observation instrument and human noise.The results show that the observation environment of Yongan Station is good and the gradient meets the requirements.The main reasons for excessive background noise and unexplained crash of the geomagnetic instrument are the long running time of the in-strument and the deterioration of internal performance.After the transformation of the industrial computer,the failure rate is greatly reduced,and the data noise is also greatly improved after the update of the instrument,which effectively improves the maintenance experience and observation data quality of Yongan geomagnetic instrument and provides reference for the observation and maintenance of the station.
关键词
地磁观测/背景噪声/仪器改造Key words
geomagnetic observation/background noise/instrument modification引用本文复制引用
出版年
2024
NETL
NSTL
万方数据