Artifact Calibration of Coordinate Measuring Machine-Kinematic Calibration-

Kinematic calibration of a parallel robot using coordinate measuring machine

In the applications of parallel robots, kinematic calibration is required to eliminate the errors resulting from the manufacturing and assembly. In this paper, a new method for calibrating a parallel robot is proposed. An error model for kinematic calibration is constructed using differential geometry method. All leg length information and pose error are obtained based on measurement results co...

Laser Tracker Calibration Using Coordinate Measuring Machine

This paper presents the achievement of a China NSFC project. A technique to calibrate laser tracker using CMM has been developed. A laser tracker with working range of 35m can be calibrated accurately and quickly using a CMM with working range of 1m. Studies have shown that angular errors are the key contributor to measuring errors of laser tracker. A device to measure angular errors of laser t...

Articulated Arm Coordinate Measuring Machine Calibration by Laser Tracker Multilateration

A new procedure for the calibration of an articulated arm coordinate measuring machine (AACMM) is presented in this paper. First, a self-calibration algorithm of four laser trackers (LTs) is developed. The spatial localization of a retroreflector target, placed in different positions within the workspace, is determined by means of a geometric multilateration system constructed from the four LTs...

A Self-calibration Method for Coordinate Measuring Machines

The Calibration Index and Taxonomy for Robot Kinematic Calibration Methods

The major approaches toward kinematic calibration are unified by considering an end-point measurement system as forming a joint and closing the kinematic loop. A calibration index is introduced, based on the mobility equation, that considers sensed and unsensed joints and single and multiple loops and expresses the surplus of measurements over degrees of freedom at each pose. Past work using op...