全站仪三角高程测量及精度

Accuracy investigation and approaches of total station trigonometric leveling surveying

针对减小全站仪测量垂直角的误差是提高三角高程测量精度的问题,通过使用跟踪杆配合全站仪测量高程的越来越普及,使用传统的三角高程测量方法已经显示出了它的局限性。经过长期摸索,提出一种新的方法进行三角高程测量。结果表明:这种方法结合水准测量的任一置站的特点,减少了三角高程测量的误差来源,同时每次测量时不必量取仪器高、棱镜高,既减轻了外业工作量,又为提高精度减少了误差来源,使三角高程测量精度进一步提高,施测速度更快。该种高程测量的方法在实际工作中具有一定的适用性和参考价值。

In view of improving accuracy of trigonometric leveling surveying lies on how to reduce the error in measuring the vertical angles with Total Station method.The traditional trigonometric leveling method has shown its limitations,and a new method to measuring elevation using Total Station and tracking pole together is becoming more and more popular recently.After years of research and test,a new method has been carried out to do the measurement.It features measuring with any setting station without measuring the height of instrument and prism,which reduces the sources of error and the field workload.As a result,the new method increases the accuracy of trigonometric leveling while taking less time.The above mentioned way of measuring can be applied to some cases and offers certain reference.