| 蒙城台磁变仪跳动及其原因的初探 |
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| 引用本文： | 刘义高,郑志坤,徐治庭.蒙城台磁变仪跳动及其原因的初探[J].防灾减灾工程学报,2002,22(1):17-21. |
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| 作者姓名： | 刘义高 郑志坤 徐治庭 |
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| 作者单位： | 安微省地震局,安徽,合肥,230031 |
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| 摘 要： | 2001-03-09蒙城地震台地磁磁变仪CB-3(观测仪，备份仪)同时出现三个分量动线的跳动，分析表明蒙城地震台地磁总强度F、 垂直强度Z发生变化。 其原因可能是强电流作用下，地下介质电性变化所致。
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| 关 键 词： | 磁变仪 三分量动线跳动 强电流 介质电性变化 |
| 文章编号： | 1003-868X(2002)01-0017-05 |
| 修稿时间： | 2001年9月28日 |
A preliminary study of the reason for jumps on the magnetic variometer's records at Mengcheng Seismic Station |
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| LIU Yi-gao,ZHENG Zhi-kun,XU Zhi-ting.A preliminary study of the reason for jumps on the magnetic variometer''''s records at Mengcheng Seismic Station[J].Journal of Disaster Prevent and Mitigation Eng,2002,22(1):17-21. |
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| Authors: | LIU Yi-gao ZHENG Zhi-kun XU Zhi-ting |
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| Abstract: | Jumps appeared on the recording traces of all the three components of the CB-3 type geomagnetic variometers(the observational instrument and standby i nstrument) on march 9，2001. An analysis indicated that variation appeared in the geomagnetic total intensity F and the vertical intensity Z. The variations might be caused by the variations in the electric property of the underground medium due to the action of a strong electric current. |
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| Keywords: | geomagnetic variometer jump on the recording traces of all the three components strong electric current variation in electric properties of medium |
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