全站仪测距归算误差的分析及对策

Analysis and Countermeasure of Calculate Error in Distance Survey by Total Station

在精密工程测量工作中,经常进行精密距离测量,利用测量斜距归算水平距离、椭球面弧长的过程中会产生投影变形问题,从而对测量成果的精度造成很大影响。该项研究对归算过程中的变形值进行了理论推导,并利用具体数据对变形值的大小和变化规律进行了定量分析,最后提出了减小变形误差的措施。

In the practice of precision engineering survey, precision distance survey is a common work. During the course of calculating horizontal distance and projection distance to the ellipsoid from slope distance, projection deformation is produced. In this paper, the projection deformation was derived, the variation of projection deformation error with the variation of the distance and the vertical angle was studied, a method to reduce the projection deformation error was also proposed.