GDS—1000宽频带通用流动数字地震观测系统

GDS-1000 GENERAL PORTABLE DIGITAL SEISMIC OBSERVATION SYSTEM

GDS-1000宽频带通用流动数字地震观测系统主要用于大陆岩石层的人工及天然地震台阵研究、强震观测以及余震观测台网的临时布设。其主要技术指标为:动态范围120dB,前放增益1,16,128倍可调,高端频率6.25,25,45Hz可调,采样率25,100,200Hz可调,1MB固态数据存储器借助地震数据的压缩软件可以存储3MB以上的数据,工作温度范围-10—45℃,功耗小于3W。定时接受的BPM无线电授时信号可保证记录系统时钟校正误差小于10ms。其智能化地震触发系统可处于下列模态:近震触发,远震触发,近震和远震触发,任意地面运动信号触发,以及手动触发和定时触发。DSR-1000数字地震数据回收系统用于GDS-1000的参数预置、地震事件数据的转储和地震图的现场绘制。该系统在野外试验期间已取得大量近震、远震及核爆炸记录。

The GDS-1000 broadband general portable digital seismic observation system is designed for temporary array seismic studies,including refraction and reflection survey,of the continental lithosphere as well as for strong motion observation and.rapid deployment in aftershok studies.The main features are: dynamic range 120 dB; preamplifier gain 1,16,128 adjustable; the upper cut-off frequency 6.25,25,45 Hz adjustable; sampling rate 25,100,200 Hz adjustable; operation temperature range -10 to 45℃; power consumption less than 3 W; data more than 3MB can be stored in the 1MB solid memory bank.The system-clock error can be automaticlly rectified down to less than 10 ms by radio time signals.The smart trigger can be in the following modes: local and regional events; teleseismic events; earthquake events; any ground motion; time-preset and hand trigger.The DSR-1000 digital seismic retriever is used for the GDS-1000 parameter preset,data restore and seismogram plot.A large amount of seismic events and nuclear explosions have been recorded during the field test of this system