Error Model and Calibration Analysis of the Flexible Coordinate Measuring Machine

被引:0
|
作者
Li, Fang [1 ]
Liu, Shugui [1 ]
Zhao, Lei [1 ]
机构
[1] Tianjin Univ, State Key Lab Precis Measuring Technol & Instrume, Tianjin 300072, Peoples R China
关键词
Coordinate Measuring Machine; D-H Method; Error Model; Nonlinear Least Square Method; LM Method; ARM;
D O I
10.4028/www.scientific.net/AMM.121-126.3273
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A new 5-DOF flexible coordinate measuring machine (CMM) is introduced in this paper, which uses REVO system produced by Renishaw. According to the D-H method, the mathematical model is built, and then the error model of the flexible CMM is derived. The parameter calibration based on the nonlinear least square method is analyzed theoretically. Due to the disadvantages of Gauss-Newton method, LM method is researched, which improved the singularity of the coefficient matrix. The calibration analysis is a basis for improving accuracy of the flexible CMM.
引用
收藏
页码:3273 / 3277
页数:5
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