| DZSS-1型深层数字地震仪 |
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| 引用本文： | 赖明惠,潘卫平,施荣祥,楚惟善,杨生华.DZSS-1型深层数字地震仪[J].地球物理学报,1988,31(4):432-438. |
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| 作者姓名： | 赖明惠 潘卫平 施荣祥 楚惟善 杨生华 |
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| 作者单位： | 1. 中国科学院地球物理研究所 北京;
2. 地质矿产部重庆地质仪器厂;
3. 现在湖北工学院工作 |
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| 摘 要： | DZSS-1型深层数字地震仪由三分量检波器CDJ-6B、数据采集单元、磁带机、编码钟和回放装置组成。它采用循环浮点放大-A/D转换技术、低噪音运算放大器、CMOS器件,使仪器噪音小于0.3μV（折合到前级放大器输入端,均值）,动态范围大于96dB,采用调相制、串码、单轨盒式数字磁带记录。仪器频带范围1-30Hz,浮点72dB。有钟差显示（±1ms）、噪音和误操作显示。仪器主要技术指标（道间一致性、漂移、噪音、串音、误码率、主放台阶精度）可用微机进行检测,能满足地震测深和其它低频数字测量之用。
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| 关 键 词： | 循环浮点放大&mdash A/D转换 数字地震仪 地震测深 |
| 收稿时间： | 1986-11-03 |
DZSS-1 TYPE DIGITAL SEISMOGRAPH OF DEEP EXPLOSION SEISMIC SOUNDING |
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| LAI MING-HUI PAN WEI-PING.DZSS-1 TYPE DIGITAL SEISMOGRAPH OF DEEP EXPLOSION SEISMIC SOUNDING[J].Chinese Journal of Geophysics,1988,31(4):432-438. |
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| Authors: | LAI MING-HUI PAN WEI-PING |
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| Institution: | 1. Institute of Geophytics, Academia Sinica, Beijing;
2. Factory of Chongqing Geology Instrument |
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| Abstract: | DZSS-1 type digital seismograph is developed for deep explosion siesmic sunding. Each seismograph consists of CDJ-6B, data acquisition system, digital cassette tape recorder, digital quatz clock and playback. It uses the circulation amplyfier with automatic gain setting and A/D conversion, lower noise operational amplyfier, CMOS electronics. The noise, referred to input, is no more than 0.3μV （r.m.s）. Dynamic range is more than 96 dB. PE, serial, single track digita cassette tape recorder. Bandwidth 1-30 Hz. IFP amplyfier: 72 dB. It has display of clock error （±1ms）, noise and status error. The main feature can be measured by microcomputer, such as channel to channel accuracy, DC offset, noise, crosstalk, gain step accuracy.The field experimental observation proved that this instrument could meet the need of deep explosion seismic sounding and other low frequencies digital measurements. |
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| Keywords: | Circulation amplyfier with automatic gain setting and A/D conversion Digital Seismograph Deep seismic sounding |
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