抄録
Traceable calibration methods for 3D mechanisms are necessary to use the mechanisms as coordinate measuring machines. The calibration method of coordinate measuring machine using artifacts, artifact calibration method, is proposed in taking account of traceability of the mechanism. Coordinate measuring machine which has multiple forward kinematics for one measuring point call as “redundant coordinate measuring machine”. In this article, the self calibration method for the two dimensional laser tracker system as the example of the redundant coordinate measuring machine is formulated base on least squares method. Firstly, the calculation system which takes out the values of kinematic parameters using least squares method is formulated. Secondly, the estimation value of uncertainty of measuring machine is calculated using error propagation method. The self calibration method for the redundant coordinate measuring machine is applicable to various types of 3D redundant mechanisms.
