精密全站仪标称精度的实现途径之一——距离测量精度的保障  

One of the ways to realize the nominal accuracy of precision electronic tachometer

作　　者：蒋利龙[1] 王宇会[1] 杜向锋[1] 

机构地区：[1]广东工业大学测绘工程系,广东广州510006

出　　处：《测绘工程》2008年第1期67-70,共4页Engineering of Surveying and Mapping

基　　金：广东省自然科学基金资助项目(05001833)

摘　　要：气象代表性误差是光电测距的主要误差来源,也是实现精密全站仪标称精度的主要障碍之一。文中以近地面大气层的垂直温度分布为基础,讨论了光电测距的最佳观测时间以及精确的气象改正方法。采用这些方法能够有效地削减光电测距的气象代表性误差,保证距离测量的精度。The meteorological representative error is the main source of EDM error, as well as the main obstruct to realize the nominal accuracy of the precision electronic tachometer also. Based on the vertical distribution of the air temperature in the lowest troposphere, discussion is made on the optimum time for EDM and the method to carry through the accurate atmospheric correction. By these ways, the meteorological representative error of EDM can be effectively reduced, ensuring the precision of the distance measurement.

关 键 词：全站仪 标称精度 光电测距 观测时间 气象代表性误差 

分 类 号：P215[天文地球—测绘科学与技术]