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摘要: 介绍和分析了昌黎台地电场观测中常出现的一些干扰和典型变化形态以及分析排查过程,认为主要存在5种干扰变化:(1)雷电、降雨影响;(2)线路接触不良;(3)直流干扰;(4)电极极化;(5)观测系统(主机)故障。各种干扰源不同其变化形态也不同,可以从变化形态和变幅方面进行判断。Abstract: This article describes and analyzes the interference to geoelectric field and their typical variation characteristic in Changli seismic station,as well as analysis process.The result shows that there are mainly five types of interference:(1)thunder and rainfall,(2)bad contact of line,(3)DC interference,(4) polarized electrode,(5)fault of observation system.The variation characteristics of the five types of interference are different and depend on their own source.Therefore,we can judge them according to their variation characteristics.
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[1] 徐文耀.地球电磁现象物理学[M].合肥:中国科学技术大学出版社,2009:20. [2] 沈红会,冯志生,燕明芝,等.地电场震前变化的探讨[J].西北地震学报,2006,28(1):74-77. [3] 张秀霞,殷翔,郭建芳,等.江苏地区地电场变化特征与差异性分析[J].华北地震科学,2011,(1):24-29. [4] 郭建芳,李非,张秀霞,等.地电场日变幅与地电暴分析[J].地震地磁观测与研究,2010,31(3):18-23. [5] 林向东,徐平,鲁跃,等.地电场观测中几种常见干扰[J].华北地震科学,2007,25(1):16-22. [6] 薛志明,胡莲之,李雪华.蒙城大地电场观测资料的初探[J].地震地磁观测与研究,2004,25(2):62-67. [7] 席继楼,赵家骝,王燕琼.地电场观测技术研究[J].地震,2002,22(2):67-73. [8] 卫定军.宁夏石嘴山和固原大地电场资料对比分析[J].内陆地震,2010,25(2):64-72. [9] 中国地震局监测预报司.地震电磁学理论基础与观测技术[M].北京:地震出版社,2010:222-228.
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