| 西宁地震台地磁数字化与模拟记录对比分析 |
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| 引用本文： | 李滔,丁宁霞,孙丽,杜娟,潘伊青.西宁地震台地磁数字化与模拟记录对比分析[J].地震地磁观测与研究,2010,31(5):73-78. |
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| 作者姓名： | 李滔 丁宁霞 孙丽 杜娟 潘伊青 |
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| 作者单位： | 西宁地震台,中国青海810001 |
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| 基金项目： | 地震监测预报科研三结合课题 |
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| 摘 要： | 西宁地震台FHD数字化核旋仪从2006年10月安装以来,一直与模拟仪器并行工作。二者采样率不同,所测的量也不相同。在对西宁地震台磁变仪的记录图纸进行数字化转换、生成分钟值的基础上,对FHD仪和磁变仪的观测结果进行对比分析。结果表明:数字FHD仪比三分量磁变仪更加准确地记录了当地地磁场的变化,数字仪器的观测资料明显优于模拟仪器。
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| 关 键 词： | 模拟地磁观测 数字地磁观测：对比分析 |
Comparative analysis on the digital and analog geomagnetic recording of Xining Seismic Station |
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| Li Tao,Ding Ningxia,Sun Li,Du Juan,Pan Yiqing.Comparative analysis on the digital and analog geomagnetic recording of Xining Seismic Station[J].Seismological and Geomagnetic Observation and Research,2010,31(5):73-78. |
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| Authors: | Li Tao Ding Ningxia Sun Li Du Juan Pan Yiqing |
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| Institution: | (Xining Seismic Station, Qinghai Province 810001, China) |
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| Abstract: | Xining digital nuclear spin instrument（FHD）works since it has been installed in October 2006, and working in parallel with the analog equipment. The two instruments have differnt sample rate, the measured components are also not the same. In order to study the comparability of analog and digital recording, we generate minute values from the record drawings, and then, compared and analyzed the observational data of digital FHD meter and vari- ometer in Xining station. The results showed that the digital FHD instrument is more accu- rate than the three-component variometer for recording the local geomagnetic field changes. The digital instrumentation is much better than the analog instruments. |
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| Keywords: | analog geomagnetic observation digital geomagnetic observation comparison and analysis |
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