Paper Info
Title
Self-calibration and mirror center offset elimination of a multi-beam laser tracking system
Abstract
New methods for the self-calibration of a laser tracking coordinate measuring machine are reported in this paper. Proper calibration of a laser tracking system is essential prior to using such a device for coordinate measuring. The task is nontrivial in the absence of other measurement systems of comparable accuracy. One has to rely on a self-calibration strategy. Two calibration methods, one based on a four-tracker system and the other based on three trackers combined with precision planes to constrain the target motion, are proposed. Iterative optimization algorithms are developed. A basic assumption for these calibration methods is that there is no tracking mirror center offset. Error analysis presented in this paper reveals that measurement errors due to mirror center offsets are significant. Therefore before calibrating the laser tracking system, the mirrors must be adjusted so that the laser beams hit the mirror centers. The adjustment is a tedious manual task. In the FAU laser tracking machine, an adjustment procedure which employs a four quadrant detector has been devised for the elimination of tracking mirror center offsets. Simulation and experimental results are presented to demonstrate the effectiveness of the suggested methods.
Year
DOI
Venue
1992
10.1016/0921-8890(92)90042-W
Robotics and Autonomous Systems
Keywords
Field
DocType
Coordinate measuring,Laser tracking,Laser tracking measuring,Self-calibration,Robot calibration,Mirror center offset
Coordinate-measuring machine,Computer vision,Robot calibration,Simulation,Computer science,Tracking system,Laser,Artificial intelligence,Detector,Calibration,Offset (computer science),Observational error
Journal
Volume
Issue
ISSN
9
4
Robotics and Autonomous Systems
Citations 
PageRank 
References 
12
2.83
0
Authors
4
Name
Order
Citations
PageRank
Hanqi Zhuang149070.45
Baiyuan Li2122.83
Zvi S. Roth311019.78
Xangdong Xie4325.88