| 不同供电方式对测震波形记录影响的对比分析 |
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| 引用本文： | 李小军,李冬圣,蔡玲玲,李文军,武有文.不同供电方式对测震波形记录影响的对比分析[J].华北地震科学,2014(1):12-15. |
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| 作者姓名： | 李小军 李冬圣 蔡玲玲 李文军 武有文 |
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| 作者单位： | 河北省地震局;承德地震中心台; |
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| 基金项目： | 测震台网青年骨干培养专项(项目编号:20130203);河北省地震科技星火计划项目(项目编号:20130203) |
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| 摘 要： | 使用同一套测震设备，计算不同供电方式下电源输出信号的自噪声功率谱密度，分析测震专业设备记录波形与电源输出信号之间的相关性，得到了不同电源输出信号的噪声特征，量化了测震专业设备记录波形与电源供电输出信号的关联关系。试验证明，供电方式的改变可以为提高波形记录质量起到很好的作用。
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| 关 键 词： | 波形 供电 信噪比 开关电源 |
Effect of Different Power Supply Systems on Seismic Waveform Records |
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| Li Xiao-jun,Li Dong-sheng,Cai Ling-ling,Li Wen-jun,WU You-wen.Effect of Different Power Supply Systems on Seismic Waveform Records[J].North China Earthquake Sciences,2014(1):12-15. |
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| Authors: | Li Xiao-jun Li Dong-sheng Cai Ling-ling Li Wen-jun WU You-wen |
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| Institution: | 1. Earthquake Administration of Hebei Province, Shijiazhuang 050021, China; 2. Chengde Centre Seismic Station, Chengde 067000, China) |
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| Abstract: | By analyzing the waveform recorded by the same seismological observatory equipment based on different power supply systems, we calculate the self-noise power spectrum density of the signal outputted by the power supply systems and analyze the interdependency between the waveform recorded by the same seismological observatory equipment and the signal outputted by the power supply systems. We get the character of the signal outputted by different power supply systems and quantify the relationship between the waveform recorded by the same seismological observatory equipment and the signal outputted by the power supply systems. The result of the experiment shows that the change of power supply system can im- prove the quality of waveform record. |
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| Keywords: | waveform power supply signal to noise ratio Switching Power Supply |
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