| HS1海底数字地震仪 |
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| 引用本文： | 郝维城,徐礼国,冉崇荣,张玉云,陈岳忠.HS1海底数字地震仪[J].地球物理学报,1986,29(5):482-490. |
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| 作者姓名： | 郝维城 徐礼国 冉崇荣 张玉云 陈岳忠 |
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| 作者单位： | 中国科学院地球物理研究所, 北京 |
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| 摘 要： | HS1海底数字地震仪是为探测海洋地壳深部构造而研制的,由主机数字化测震系统及附属的投放和回收装置组成。经微机测试,主要性能指标为:输入端噪声电压0.1μV·rms;动态范围119dB;A/D和,D/A12位;通频带0.2-25Hz;线性优于1％;谐波失真<％;串音<-119dB;时间服务准确到0.01s;等待功耗1.1W;记录功耗3.3W。能同时输出模拟和数字信号,便于送微机预处理。本文着重介绍该机的组成和工作原理,并给出了海上实验获得的地震剖面图。
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| 关 键 词： | 数字地震仪 海底地震仪 测震 地震信号 地震计 人工地震测深 瞬时浮点放大 数据回放 定时程序 拾震器 |
| 收稿时间： | 1985-10-23 |
HS1 DIGITAL OCEAN BOTTOM SEISMOGRAPH |
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| HAO WEI-CHENG,XU LI-GUO,RAN CHONG-RONG,ZHANG YU-TTJN,CHEN YUE-ZHONG.HS1 DIGITAL OCEAN BOTTOM SEISMOGRAPH[J].Chinese Journal of Geophysics,1986,29(5):482-490. |
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| Authors: | HAO WEI-CHENG XU LI-GUO RAN CHONG-RONG ZHANG YU-TTJN CHEN YUE-ZHONG |
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| Institution: | Institute of Geophysics, Academia Sinica, Beijing |
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| Abstract: | In this paper the configuration and principle of design of the HS1 are described, and some results of experimental marine observation are given.The HS1 digital ocean bottom seismograph is developed for deep marine seismic sounding. The design consists of a digital seismometer, launching and recovering devices. The main characteristics which were measured by microcomputer are the following; noise level no more than 0.1 μV·ms; dynamic range 119 dB; A/D and D/A both 12 bit; bandwidth 0.2-25 Hz; linearity error less than 1%; harmonic distortion less than 1%; crosstalk less than -119 dB ; accuracy of timing 0.01 s; power consumption 1.1 W when waiting and 3.3 W for recording. Both digital and analog signals obtained simultaneously by the system can be easily preproeessed by a. microcomputer. |
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