潘正风, 陈永奇. 精密激光准直及其在大坝变形观测中的应用[J]. 武汉大学学报 ( 信息科学版), 1980, 5(1): 73-84.
引用本文: 潘正风, 陈永奇. 精密激光准直及其在大坝变形观测中的应用[J]. 武汉大学学报 ( 信息科学版), 1980, 5(1): 73-84.
Pan Zhengfeng, Chen Yongqi. Precision Laser Alignment and its Use in the Measurement of the Horizontal Deformation of Large Dams[J]. Geomatics and Information Science of Wuhan University, 1980, 5(1): 73-84.
Citation: Pan Zhengfeng, Chen Yongqi. Precision Laser Alignment and its Use in the Measurement of the Horizontal Deformation of Large Dams[J]. Geomatics and Information Science of Wuhan University, 1980, 5(1): 73-84.

精密激光准直及其在大坝变形观测中的应用

Precision Laser Alignment and its Use in the Measurement of the Horizontal Deformation of Large Dams

  • 摘要: 本文首先探讨了"波带板法"激光准直的若干问题,这包括园形波带板的成象规律、大气折光的影响以及点光源和探测器设计中的主要问题。然后介绍我院研制的准直仪器以及在大坝水平位移观测中的试验和应用。

     

    Abstract: In this paper,firstly,the authors studied some of the problems concerning laser alignment,which include:the laws of the image formed by round zone plate,atmospheric effect on laser alignment and main points in designing laser source and detector.Secondly,they described the Laser Alignment Instrument developed by the Engineering Surveying Laboratory in our College and its use in the measurement of the horizontal deformation of large dams,The conclusions axe as follows:a) Laser alignment using round zone plate is a better method for alignment survey as compared with other methods.b) Atmospheric effect on the method using round zone plate is smaller than on otherlaser alignment methods,But to obtain an accuracy of 10-6 on a one-kilometer line,good atmospheric conditions must be chosen.c) In the measurement of the horizontal deformation of large dams,this method proves to be a good one,in which the time for measurement can be shortened,man power reduced and automatic measurement realized with more ease.

     

/

返回文章
返回