波带板激光准直的应用及误差分析

USE OF LASER ALIGNMENT USING ROUND ZONE PLATE AND ANALYSIS OF THE ERROR

本文介绍了波带板激光准直的方法,比较系统地分析了波带板激光准直的误差来源和精度分布情况。用不同的归算方法讨论了大气折光对大坝变形观测的影响。通过进行温度梯度改正的试验,说明减弱大气折光影响的可能性。并在此基础上,提出一些能够提高准直精度的观测方法。

This paper introduced , the method about laser alignment using round zone plate, analysed sources and distribution of the method's error in a systematic way. The author discussed atmospheric effect in the measurement of the horiz-ontal deformation of large dams with different kinds of correction for reduction, explaind feasibility reduced the effect for the experivnent of correction for horizontal temperature gradient . Then , some met hods of observation increasing aligiibent accuracy was given.