一种减小倾斜误差影响的免棱镜对中杆  

Centering Rod of Prism-free Total Station for Reducing the Oblique Error Influence

作　　者：李行 耿利川 武静 贾宝川[1] 陈朵 LI Hang;GENG Lichuan;WU Jing;JIA Baochuan;CHEN Duo(The Fourth Geological Exploration Institute of Henan Geology and Mineral Bureau,Zhengzhou 450000,China;College of Urban and Environmental Sciences,Xuchang University,Xuchang 461000,China)

机构地区：[1]河南省地质矿产勘查开发局第四地质勘查院,河南郑州450000 [2]许昌学院城市与环境学院,河南许昌461000

出　　处：《地理空间信息》2022年第11期136-138,146,共4页Geospatial Information

基　　金：河南省科技厅重点研发与推广专项资助项目(212102310419);许昌学院2022年度校级科研资助项目(2022YB031)。

摘　　要：为解决使用全站仪测图时,对中杆倾斜造成转点坐标偏离真实坐标的问题,设计了一种减小对中杆倾斜误差的免棱镜全站仪对中杆。根据两个相似三角形形状越小、对应边长越短的原理,可将对中杆倾斜误差降低至目前的10%以下。通过实验分析了对中杆倾斜误差对转点误差的影响,结果表明减小对中杆倾斜误差能有效提高免棱镜全站仪转点测量的精度,从而验证了该设计的理论可行性和实用性,在涉及相似场景的测绘实践中具有一定的借鉴和推广价值。In order to solve the problem of turning points deviating from the real coordinate due to the inclination of the centering rod when using the total station for mapping, we designed a centering rod of prism-free total station, which could reduce the oblique error. According to the principle that the smaller the shape of two similar triangles, the shorter the corresponding side length, it can reduce the oblique error of centering rod less than 10%. Furthermore, we analyzed the oblique error influence of centering rod on the turning point error through experiments. The experimental results showed that reducing the oblique error of centering rod could effectively improve the turning point measurement accuracy of the prism-free total station. Thus, we verified the theoretical feasibility and practicability of this design, which had certain reference and promotion value in the surveying and mapping practice involving similar scenes.

关 键 词：免棱镜全站仪 对中杆倾斜 转点误差 

分 类 号：P232[天文地球—摄影测量与遥感]