| 地震仪自动换档设计 |
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| 引用本文： | 史富银,张秀莲.地震仪自动换档设计[J].地震地磁观测与研究,2006,27(B08):74-78. |
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| 作者姓名： | 史富银 张秀莲 |
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| 作者单位： | 阳泉市地震局,中国山西045000 |
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| 摘 要： | 鉴于测震中电子放大地震仪放大器的输出动态范围窄的缺陷，笔者作了自动换档衰减放大倍数的电路技术设计。本设计在长周期、短周期、宽频带等各种电子放大地震仪上适当改制或重新设计放大板即可应用，从而可几十倍甚至更大地拓宽电子放大地震仪的输出动态范围，大幅度增强其适用性。
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| 关 键 词： | 地震仪 输出动态范围 自动换档 切换点 |
| 文章编号： | 1003-3246（2006）增刊-0074-05 |
| 收稿时间： | 2005-02-26 |
The design of automatic gain control circuit for seismograph |
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| Shi Fuyin , Zhang Xiulian.The design of automatic gain control circuit for seismograph[J].Seismological and Geomagnetic Observation and Research,2006,27(B08):74-78. |
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| Authors: | Shi Fuyin Zhang Xiulian |
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| Abstract: | For overcoming the shortcoming of narrow output dynamic range of the electronicamplifying seismograph, the Authors have designed a kind of circuit for automatic gain control. With proper adjustment, this design can be applied in long-period, short-period and wide-band seismograph to expand the dynamic range by tens times and more. |
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| Keywords: | seismograph export the dynamic range automatic gain control exchange point |
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