TDJ7型精密陀螺经纬仪的系统误差研究

新近研制的国产ＴＤＪ７型陀螺经纬仪，采用永磁直流陀螺马达，计算机采集处理数据技术和光电积分自动测量方法，是一种先进的现代陀螺寻北系统。本文根据试验观测的大量数据，对其因温度效应和应用参数引起的系统误差进行了理论研究，提出了定点步进定间距计算改正、合理确定扭力零位权、优化求解角度当量值和扭力矩系数等措施，从而有效地减小了系统误差，显著提高了仪器的定向精度。

A RESEARCH ON SYSTEMATIC ERROR OF TAPE TDJ7PRECISE GYROTHEODOLITE

: The photoelectric integration method is a newly developed one for the orientation of gyrotheodolite. A band-new precise gyrotheodolite type TDJ7 with this method has bee developed by the Xi'an Research Institute of Surveying and Mapping, This paper deals with the operation principle, features in design and performance index of TDJ7 gyrotheo dolite. In the discussion, emphasis is placed on the systematic errors proceed from the time-variable temperature effect and the operational parameters. Based on a large amount of data obtained from practical orientating experiments, an analysis of measuring preci sion has been made. Some measures for diminishing the systematic error and increasing the intrinsic accuracy are suggested.