| 地震计幅频、相频偏差与周期、阻尼的关联性研究 |
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| 引用本文： | 王翠芳,邵玉平,杨晓源,张勇.地震计幅频、相频偏差与周期、阻尼的关联性研究[J].地震地磁观测与研究,2014,35(5):249-252. |
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| 作者姓名： | 王翠芳 邵玉平 杨晓源 张勇 |
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| 作者单位： | 中国成都610041 四川省地震局水库地震研究所 |
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| 基金项目： | 国家自然科学基金“精确传递函数地震观测系统研究” |
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| 摘 要： | 《中国数字测震台网技术规程》新增仪器精度指标,要求3种不同用途的地震计“在通频带内,幅频特性优于1％,相频特性优于5°”.本研究表明,在通频带下边沿周期与地震计工作周期相同条件下,几乎没有仪器能在长期只标不调的运行状态下能满足此规定.因使用工作周期偏差和阻尼偏差标定产品精度具有更好的直观性和可操作性,建议在颁发新技术规程时,将仪器精度修改为地震计工作周期偏差和阻尼偏差.
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| 关 键 词： | 幅频特性 相频特性 工作周期 工作阻尼 |
Research on the interrelationship between error of seismometer amplitude-frequence and phase-response and work period,work damp |
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| Wang Cuifang,Shao Yuping,Yang Xiaoyuan,Zhang Yong.Research on the interrelationship between error of seismometer amplitude-frequence and phase-response and work period,work damp[J].Seismological and Geomagnetic Observation and Research,2014,35(5):249-252. |
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| Authors: | Wang Cuifang Shao Yuping Yang Xiaoyuan Zhang Yong |
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| Institution: | (Institute of Reservoir Earthquake ,Earthquake Administration of Sichuan Province, Chengdu 610041, China) |
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| Abstract: | The instrument precision parameters increased recently. In Stipulation on China Digital Seismograph Network the demand for three types of seismogrpraphs for different usage is that. ＂in transmission bands, the mplitude-frequence response should be less than 1 %, and phase-frequence response should be less than 5°＂. Our research indicate that, in the condi- tion of transmission bands and the same work period, there is no a set of seismometers that could fit to this stipulation if the instrument not debug after long time running. So we pro- pose that, in the new stipulation, the precision parameters should be changed into work peri- od and work damp relevance directly, because these two parameters could be measured dur- ing impulse calibration everyday. |
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| Keywords: | amplitude-frequence response phase-frequence response work period work damp |
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