数字地震仪调校和检修的一些体会

SOME PERSONAL EXPERIENCE IN ADJUSTING AND TROOBLESHOOTING THE DIGITAL SEISMIC RECORDER

大港油田地调指挥部

本文介绍了在野外条件下,利用阴极射线示波器对几种数字地震仪前放和主放性能指标进行检测的一种简捷方法。具体做法是在主放输出端观测一个完整的采样周期,直接了解仪器的调整效果,定性或半定量地掌握仪器模拟部分各项技术指标的状况。从而有效地提高了数字仪检查纪录计算机处理的一次合格率。同时,文章还简单介绍了数字磁带机调整和检修的点滴体会。

A simple and easy way for checking and testing the performance specifications of preamplifier and mainamplifier of some different models of digital seismic recorders in the field using CRT oseillograph is suggested in this paper. The procedure is, trying to measure a couplete sampling period for the parpose of getting a personal feeling about the result after the unit being abjusted and having the situation under control with respect to the specifications on analog part of the unit qualitatively or semiquantitatively, sothat the computerized checkouts for acceptance check will be up to the required technical standard easily.Besides, a bit of the author's experience about the way how to adjust and troubleshoot the digital tape transport is briefly described in the paper.