应用精密三角高程测量替代二等水准测量

The Application of Precision Trigonometric Leveling to Substitute the Secondary Leveling

从三角高程测量高差计算公式入手,分析了三角高程测量的误差来源及精度,得出了减弱各项误差从而提高精度的一些相关结论。进而得出精密三角高程测量的精度及其替代二等水准测量的条件、减弱误差的一些方法以及提高精度的相关措施等。结合TCA2003全站仪ATR功能,探讨了精密三角高程测量的精度及其替代二等水准测量的可行性和成果的可靠性。

The paper analyses the source and accuracy of trigonometric leavening＇ s error from the computed formula of it, and then draws a conclusion of how to weaken the errors and to raise the accuracy. And then analyses the accura- cies of the precision trigonometric leveling and the conditions when it can substitute the secondary leveling, and the meth- ods of how to weaken the errors and to raise the accuracies. The paper inquires into the feasibility and the production＇ s reliability of utilizing the precision trigonometric leveling to substitute the secondary leveling and its accuracy, from the function of the ATR of the total station TCA2003 instrument.