大地测量与地球动力学2011，Vol.31Issue(2)：149-152,4.
LaCoste & Romberg ET型重力仪数字静电反馈系统的研制
DEVELOPMENT OF DIGITAL ELECTROSTATIC FEEDBACK SYSTEM OF LaCoste & Romberg ET GRAVIMETER
摘要
Abstract
The principle of the digital electrostatic feedback system developed with computer technology and control algorithm of digital PID( Proportion Integral Derivative) control is systematically introduced. In addition, it is the first time in China that this new system is successfully used in the update of LaCoste & Romberg (LCR) ET20 gravimeter. The experimental results of the LCR ET20 gravimeter with the new system installed show that problems of analog electro-feedback system, such as the difficulty to adjust linearity and the worse long-term stability, are basically resolved. Moreover, the precision of gravimeter has increased.关键词
LCR/ET型重力仪/计算机技术/数字比例积分微分/模拟静电反馈系统/数字静电反馈系统Key words
LCR ET gravimeter/ computer technology/ digital PID ( Proportion Integral Derivative )/ analog electro feedback system /digital electro feedback system分类
机械制造引用本文复制引用
张标,刘明,郑少怀,孙和平,陈晓东..LaCoste & Romberg ET型重力仪数字静电反馈系统的研制[J].大地测量与地球动力学,2011,31(2):149-152,4.基金项目
中国科学院重要方向性项目(KZCX2-YW-133) （KZCX2-YW-133）
国家自然科学基金(41021003,40904019) （41021003,40904019）
