建立特高精度工业测量控制同时高程的精密测定方法  

A Precision Method for Setting up Industrial Control Net with Extra-high Accuracy

作　　者：冯文灏[1] 高新乔[1] 李欣[1] 廖祥春[2] 

机构地区：[1]武汉测绘科技大学信息工程学院,武汉市珞喻路129号430079 [2]武汉测绘科技大学图书馆,武汉市珞喻路129号430079

出　　处：《武汉测绘科技大学学报》2000年第1期70-73,共4页Geomatics and Information Science of Wuhan University

摘　　要：把工业目标作为对象的特高精度工业测量控制网，其平面坐标精度可达到数十μｍ。高程精度也应相应地达到数十μｍ，以满足工业部件检测和放样的要求。此方法已成功地应用于工业测量与放样中。An industrial control network with high accuracy should be established for measurement and setting out of batches of industrial components. The operational mode with on-line stations on observation pillars have the advantages on tripods in velocity, accuracy and reliablity. Building and actual accuracy (± 0.1mm) Of the industrial horizontal control network with 8 observation pillars have been introduced by Feng, et al (1999). A simple procedure for determining relative elevations of observation pillars is proposed for measuring the heighs of its all neighbor pillars on each station, with height gauge (0. 02mm of mimimal reading) and NA2 model pendulum level made by Leica company, Sweden. As a result, closing error for each circuit in the network is no more than 0.05mm. The key techniques are: ①horizontality of the upper surface of the observation pillar is made less than l'; ②The special marker on the upper surface of the . pillar is used as a target which is used to transmit its height to the station; and ③The distance between neighbor pillars is no more than 9m.

关 键 词：特高精度 控制网 工业测量 高度游标卡尺 

分 类 号：TG8[金属学及工艺—公差测量技术] TG813