便携式重力固体潮数字化数据采集系统  

PORTABLE DIGITAL DATA ACQUISITION SYSTEM FOR GRAVITY TIDE

作　　者：刘冬至[1] 李树德[1] 李辉[1] 李家明[1] 王晓权[1] 喻节林[1] 

机构地区：[1]中国地震局地震研究所

出　　处：《大地测量与地球动力学》2004年第3期115-119,123,共6页Journal of Geodesy and Geodynamics

基　　金：中国地震局"数字化地震前兆观测技术标准"项目;中国地震局局管共用设备基金资助

摘　　要：概述了线性静电反馈的基本原理。LCR G型重力仪进行线性静电反馈自动平衡的技术改造后 ,分辨率由原来的 0 .0 1× 10 -5ms-2 提高到 0 .0 0 1× 10 -5ms-2 ,与DZCW 1型智能化重力数据采集控制仪、计算机等一起组成便携式重力固体潮数字化数据采集系统。系统可进行数据实时处理、图像显示和数据传输。试验结果表明 :系统性能稳定、可靠 ,操作方便、灵活、快捷 。The basic principle of linear electrostatic feedback are described.Resolution of LCR G gravimeter is improved from 0.01×10\+\{-5\}ms\+\{-2\} to 0.001×10\+\{-5\}ms\+\{-2\} after linear electronic beam nulling is installed.A portable digital data acquisition system for gravity tides of LCR G gravimeter,with DZCW1 intellectualized gravity data acquisition director and computer has been made up. The system can carry out real time data process, image display and data transfer. The test results show that performance of the system is stable and reliable,it can be easily,flexibility and quickly operated,hence it can be used to monitor continuous gravity field change in time and space.

关 键 词：线性静电反馈 数字化 数据采集系统 重力场 监测 

分 类 号：P312.4[天文地球—固体地球物理学]