地震勘探仪器前放的作用及增益参数选择

The preamplifier function and gain parameters choice of the seismic detecting instrument

地震勘探仪器前放增益参数的选择是一个非常重要的问题,关系到整个仪器系统的动态范围与地震信号的特征,进而影响到解决地质问题的效果。文章从仪器前置放大器的原理、关键参数出发,说明前放在采集过程中的作用,如何使用前放参数才能真正发挥其作用。

Preamplifier gain parameters in the instrument choice is a very important issue which will influence the dynamic range of the instrument system as a whole and the characteristics of seismic signals,thereby affecting the effect of the solution of geological problems.Based on principle of the instrument preamplifier,the key parameter,this article describes the function of preamplifier during the acquisition process,and explains how to use the preamplifier parameters.