| PET重力仪与CTS-1EF地震计地震波记录特征分析 |
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| 引用本文： | 李盛,郭昱琴,张慧,李志雄,彭利媚.PET重力仪与CTS-1EF地震计地震波记录特征分析[J].地震地磁观测与研究,2018,39(3):128-133. |
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| 作者姓名： | 李盛 郭昱琴 张慧 李志雄 彭利媚 |
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| 作者单位： | 中国海口 570203 海南省地震局 |
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| 基金项目： | 中国地震局监测、预测、科研三结合课题（项目编号：CEA-JC/3JH-162101，CEA-JC/3JH-172205）；2017年度海南省科协青年科技英才创新计划（项目编号：QCXM201710）；海南省地震局科研课题（项目编号：HDKJ1711，HDKJ201807） |
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| 摘 要： | 收集苍梧M 5.2、九寨沟M 7.0和智利M 8.2地震期间琼中基准地震台PET重力仪和CTS-1EF地震计观测数据，对重力资料进行潮汐和零漂改正获得重力残差数据，并对地震计数据求导得到加速度值。对重力残差数据和地震计加速度数据波形及频谱曲线进行对比分析，认为2种观测仪器记录的地震波震相和频谱分析显示的地震波分布频率具有一致性，但九寨沟M 7.0地震和智利M 8.2地震的地震波频率分布存在差异。
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| 关 键 词： | 重力仪 地震计 地震波 震相 频谱 |
The characteristic analysis of earthquake wave recorded by PET gravimeter and CTS-1EF seismometer |
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| Li Sheng,Guo Yuqin,Zhang Hui,Li Zhixiong,Peng Limei.The characteristic analysis of earthquake wave recorded by PET gravimeter and CTS-1EF seismometer[J].Seismological and Geomagnetic Observation and Research,2018,39(3):128-133. |
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| Authors: | Li Sheng Guo Yuqin Zhang Hui Li Zhixiong Peng Limei |
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| Institution: | Hainan Earthquake Agency, Haikou 570203, China |
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| Abstract: | In this paper, the observation data of PET gravimeter and CTS-1EF seismometer at Qiongzhong seismic station when Cangwu M 5.2 earthquake, Jiuzhaigou M 7.0 earthquake and Chile M 8.2 earthquake happen are collected. We obtain gravity residual data after tides and zero drift corrected, and take the derivative of the seismometer data to make it an acceleration value. Then we comparative analysis the seismic waveforms and spectrum curves of gravity residual data and the derivative of seismometer data. The results show that seismic phases and the frequency distribution of seismic waves of gravimeter and seismometer are consistency. But the frequency distributions of seismic waves of Jiuzhaigou M 7.0 earthquake and Chile M 8.2 earthquake are not consistent. |
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| Keywords: | gravimeter seismometer seismic wave seismic phase spectrum |
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