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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<1％;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。
The HS1 seabed digital seismometer was developed to probe the deep crustal structure of the ocean crust and consists of a host digital seismic system and associated drop and recovery units. The main performance indicators are as follows: the input voltage noise is 0.1μV · rms; the dynamic range is 119dB; the A / D and D / A12 bits; the passband is 0.2-25Hz; the linearity is better than 1%; the harmonic distortion is less than 1% ; Crosstalk <-119dB; time service accurate to 0.01s; wait for power 1.1W; record power consumption 3.3W. Simultaneous output of analog and digital signals, easy to send computer preprocessing. This article focuses on the composition and working principle of the aircraft, and gives the seismic section obtained from the sea experiment.