| 怀来地震台伸缩仪EW向改进试验 |
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| 引用本文： | 范金梅,李海孝,蒋翠荣,任佳,王长江.怀来地震台伸缩仪EW向改进试验[J].华北地震科学,2009,27(4):56-58. |
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| 作者姓名： | 范金梅 李海孝 蒋翠荣 任佳 王长江 |
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| 作者单位： | 1. 河北省地震局怀来地震台,河北,怀来,075400
2. 河北省地震局张家口中心台,河北,张家口,075000 |
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| 摘 要： | 对怀来台伸缩仪EW向基线固定端、传感器进行布设改进试验，将原有28m长基线改为两段短基线（东段：14．6m，西段：13．4m）。改进后，两条短基线取得了较好的观测成果，其中东段基线改造效果非常明显，观测曲线干扰减少，光滑度显著提高，观测数据精度明显优于改造前的观测数据。这次改造试验解决了困扰怀来台多年的难题。
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| 关 键 词： | 伸缩仪 基线 固定端 改进试验 |
The Experimental Reconstruction of the Extensometer in Huailai Seismostation |
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| FAN Jin-mei,LI Hai-xiao,JIANG Cui-rong,REN Jia,WANG Chang-jiang.The Experimental Reconstruction of the Extensometer in Huailai Seismostation[J].North China Earthquake Sciences,2009,27(4):56-58. |
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| Authors: | FAN Jin-mei LI Hai-xiao JIANG Cui-rong REN Jia WANG Chang-jiang |
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| Institution: | FAN Jin-mei, LI Hai-xiao, JIANG Cui-rong, REN Jia, WANG Chang-jiang (1. Huailai Seismostarion, Huailai 075400, China; 2. Zhangjiakou Central Seisrnostation, Zhangjiakou 075000, China) |
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| Abstract: | An experimental reconstruction of the disposal of the extensometer （EW： base line, fixed end and sensor） is made in Huailai Station. The precision of observational data at extensometer before and after reconstruction are compared. The mean value of the relative error in 2008 is 0. 094 8, and is better than in 2007（before the reconstruction）. Meanwhile, the interferences are decreased significantly. Resultshow that the effects are significant after the reconstruction. |
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| Keywords: | extensometer base line fixed end reconstruction experiment |
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