A two-beam laser triangulation for measuring the position of a moving object

被引:27
作者
Zeng, LJ [1 ]
Yuan, F [1 ]
Song, DQ [1 ]
Zhang, R [1 ]
机构
[1] Tsing Hua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
laser triangulation; tracking measurement; position of a moving object;
D O I
10.1016/S0143-8166(99)00043-3
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A two-beam laser triangulation method has been proposed to measure the position of a moving object. The method uses two parallel laser beams to judge the moving direction of an object, allowing us to track it and measure its positions. An uncertainty of 0.2 mm for a measurement range of 50 mm has been obtained. This tracking measurement capability is useful in the calibration of the position of a moving robot arm. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:445 / 453
页数:9
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