光电测距仪在三、四等间接水准测量方面的应用  

Application of Geodimeter to Third or Fourth Order Indirect Leveling

作　　者：董雪亮[1] 周宗泽[1] 杨全刚[1] 

机构地区：[1]水利部山西水利水电勘测设计研究院

出　　处：《山西水利科技》1997年第4期84-87,64,共5页Shanxi Hydrotechnics

摘　　要：在水利工程测量中，用光电测距三角高程代替水准测量，尤其是三、四等水准测量，既可以节省时间，又可以保证精度，值得推广应用。There are many factors that restrict to improve the accuracy of survey including the indirect or trigonometric leveling. In this paper , some methods for eliminating these factors , mainly for the vertical angle observation in the indirect leveling applying the geodimeter are hereby introduced ,for instance ,that the ' Three-wire method' which is suitable for plain and ' central hair method' which is suitable for rolling region is introduced. Besides ,methods for correcting the effect of the atmosphere refraction and for eliminating the errors in measuring the instrument height are described as well.

关 键 词：三角高程 水准测量 光电测距仪 水利工程 

分 类 号：TV221[水利工程—水工结构工程] P224[天文地球—大地测量学与测量工程]