近来宿迁地震台地磁观测所受干扰之分析
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摘要
2006年7月初期,宿迁地震台开工新建一监测楼,楼中使用了很多钢筋和其它铁磁性材料,由于它离地磁房较近,这些铁磁性材料所产生的磁场给该台的地磁观测造成了很大的干扰。本文就宿迁台地磁场的观测情况、根据IAGA推荐的理论公式计算理论上的干扰、实际产生的干扰效果等方面给出简单陈述,并就其中的因果关系做出简单的分析和推理,以求对这次干扰做一合理的解释。
At the beginning of July,2006,a new measuring building was built in Suqian Seismic Station.We used many reinforcing steel bars and other ferromagnetism materials in it.The magnetic field that they produce greatly disturbs the geomagnetism because it is close to the measuring house.In order to find a reasonable explanation for the disturbance,this article gives a simple explanation from the measuring complexion of Suqian seismic station′s geomagnetism,the theoretic disturbed data counted on the formula of IAGA and the practical disturbing effect,analyses and discusses the causes and consequences.
At the beginning of July,2006,a new measuring building was built in Suqian Seismic Station.We used many reinforcing steel bars and other ferromagnetism materials in it.The magnetic field that they produce greatly disturbs the geomagnetism because it is close to the measuring house.In order to find a reasonable explanation for the disturbance,this article gives a simple explanation from the measuring complexion of Suqian seismic station′s geomagnetism,the theoretic disturbed data counted on the formula of IAGA and the practical disturbing effect,analyses and discusses the causes and consequences.
引文
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[3]国家地震局科技监测司.地震电磁观测技术[M].北京:地震出版社,1995
[2]杜玮.地震台站观测环境技术要求[M].北京:地震出版社,2004
[3]国家地震局科技监测司.地震电磁观测技术[M].北京:地震出版社,1995
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