| 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 |
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| 引用本文： | 蒋利龙,王宇会,杜向锋.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[J].测绘工程,2008,17(1):67-70. |
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| 作者姓名： | 蒋利龙 王宇会 杜向锋 |
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| 作者单位： | 广东工业大学,测绘工程系,广东,广州,510006;广东工业大学,测绘工程系,广东,广州,510006;广东工业大学,测绘工程系,广东,广州,510006 |
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| 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。
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| 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 |
| 文章编号： | 1006-7949（2008）01-0067-04 |
| 收稿时间： | 2007-03-01 |
| 修稿时间： | 2007年3月1日 |
One of the ways to realize the nominal accuracy of precision electronic tachometer |
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| JIANG Li-long,WANG Yu-hui,DU Xiang-feng.One of the ways to realize the nominal accuracy of precision electronic tachometer[J].Engineering of Surveying and Mapping,2008,17(1):67-70. |
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| Authors: | JIANG Li-long WANG Yu-hui DU Xiang-feng |
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| Institution: | JIANG Li-long ,WANG Yu-hui, DU Xiang-feng (Dept. of Surveying and Mapping, Guangdong University of Technology, Guangzhou 510006, China) |
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| Abstract: | 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. |
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| Keywords: | electronic tachometer nominal accuracy EDM observing time meteorological representative error |
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