经纬仪二倍半丝法视距测量的精度分析

重庆交通大学学报（自然科学版） ›› 2004, Vol. 23 ›› Issue (3): 73-74.

经纬仪二倍半丝法视距测量的精度分析

向泽君¹, 张治青¹,熊文全¹,冯晓²

1.重庆三峡水电建筑勘察设计研究院,重庆430000；2.重庆交通学院,重庆400074

收稿日期:2003-04-28 出版日期:2004-06-15 发布日期:2015-05-18
作者简介:向泽君(1987—),男,重庆市人,高级工程师,从事水电建筑勘察设计

Discussi on about double half-thread reading in measurement of sight lengths by theodolite

XIANG Ze-jun, ¹ ZHANG Zhi-qing, ¹ XIONG Wen-quan, ¹ FENG Xiao²

1.Chongqing Three Gorges Water Conservancy and Power-Plant Construction Reconnaissance and Design Institute, Chongqing 430000, China;2.Chongqing Jiaotong University, Chongqing 400074, China

Received:2003-04-28 Online:2004-06-15 Published:2015-05-18

摘要/Abstract

摘要： 笔者针对采用经纬仪二倍半丝读数能否作为视距的问题进行讨论.经过严密的数学推导，得出了采用二倍半丝与采用全丝读数视距差值的数学模型;通过绘制差值的变化曲线和视距测量的精度进行比较，对该问题做出了明确的结论和建议

关键词: 视距测量, 经纬仪, 二倍半丝法

Abstract: The paper discusses whethter the doubled half-thread reading value read from a theodolite can be taken as a sight-length. After strict derivation in math the mathematic model error value of between the doubled half-thread reading and the full-thread reading is achieved; comparing the drawn error value curve with the accuracy of aurveyed sight-length numbers the paper gives clear conclusions and suggestions

Key words: sight-length, theodolite, doubled half-thread

中图分类号:

P213

向泽君1, 张治青1,熊文全1,冯晓2. 经纬仪二倍半丝法视距测量的精度分析[J]. 重庆交通大学学报（自然科学版）, 2004, 23(3): 73-74.

XIANG Ze-jun, ZHANG Zhi-qing, XIONG Wen-quan, FENG Xiao. Discussi on about double half-thread reading in measurement of sight lengths by theodolite[J]. Journal of Chongqing Jiaotong University(Natural Science), 2004, 23(3): 73-74.