高精度全自动陀螺全站仪定向方位误差分析及精度估算

Gyro error analysis and accuracy estimation of directed edge by automatic high-precision total station gyroscope

基于高精度全自动陀螺全站仪定向特点,分析了井下定向边误差的来源.根据中误差传播率,对定向边方位精度进行估算,并提出了"2+2+1"的定向模式;根据对中误差对定向方位精度的影响分析,尽量延长定向边边长,可以减小对中误差对定向边方位的影响,提高定向精度.

Based on the characteristics of automatic high-precision total station gyroscope,analyze sources of error underground directed edge.According to error propagation rate,to estimate the accuracy orientation of the directed edge,and proposed a ＂2 ＋2 ＋1＂ directional mode;based on analysis of the error on the accuracy of the directional orientation,extend directional edge as possible,can reduce the error in center affect the orientation of edge of the directional,and can improve the directional accuracy.