| 地震计仪器噪声测量中的几个问题 |
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| 引用本文： | 崔庆谷,童汪练.地震计仪器噪声测量中的几个问题[J].地震地磁观测与研究,2003,24(6):39-46. |
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| 作者姓名： | 崔庆谷 童汪练 |
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| 作者单位： | 中国北京,100036,中国地震局港震机电技术有限公司 |
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| 摘 要： | 研究了地震计仪器噪声测量中的几个问题,并从理论、模型仿真和测量实验3个方面证实了下述结论:①平稳地噪声中,两台并列地震计的通频带差异、灵敏度差异及阻尼系数差异对测量结果没有影响;②非平稳的地背景噪声和干扰必然引起测量误差;③地震计自身噪声测量必须在安静的台基上进行。
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| 关 键 词： | 地震计 仪器噪声 噪声测量 相关系数 功率谱密度 |
| 文章编号： | 1003-3246(2003)06-0039-08 |
| 修稿时间： | 2003年7月7日 |
Several issues about the measurement of a seismometer's self-noise |
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| Cui Qinggu and Tong Wanglian.Several issues about the measurement of a seismometer''''s self-noise[J].Seismological and Geomagnetic Observation and Research,2003,24(6):39-46. |
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| Authors: | Cui Qinggu and Tong Wanglian |
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| Abstract: | Several issues about the measurement of a seismometer's self-noise are researched and the conclusions are: (1) The difference of the pass-band width, the sensitivity and the damping coefficient of the aligned seismometers has no influence on the measurement result. (2) Transient disturbance will cause measurement error. (3) The measurement of a seismometer's self-noise must be carried out in a noiseless station. |
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| Keywords: | instrument self-noise seismic noise correlation coefficient power spectrum density |
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