Geometric Robot Calibration Using a Calibration Plate

Fuente: arXiv
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Autores principales: Rameder, Bernhard, Gattringer, Hubert, Mueller, Andreas
Formato: Preprint
Publicado: 2025
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author Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
author_facet Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
contents In this paper a new method for geometric robot calibration is introduced, which uses a calibration plate with precisely known distances between its measuring points. The relative measurement between two points on the calibration plate is used to determine predefined error parameters of the system. In comparison to conventional measurement methods, like laser tracker or motion capture systems, the calibration plate provides a more mechanically robust and cheaper alternative, which is furthermore easier to transport due to its small size. The calibration method, the plate design, the mathematical description of the error system as well as the identification of the parameters are described in detail. For identifying the error parameters, the least squares method and a constrained optimization problem are used. The functionality of this method was demonstrated in experiments that led to promising results, correlated with one of a laser tracker calibration. The modeling and identification of the error parameters is done for a gantry machine, but is not restricted to that type of robot.
format Preprint
id arxiv_https___arxiv_org_abs_2510_25338
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Geometric Robot Calibration Using a Calibration Plate
Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
Robotics
In this paper a new method for geometric robot calibration is introduced, which uses a calibration plate with precisely known distances between its measuring points. The relative measurement between two points on the calibration plate is used to determine predefined error parameters of the system. In comparison to conventional measurement methods, like laser tracker or motion capture systems, the calibration plate provides a more mechanically robust and cheaper alternative, which is furthermore easier to transport due to its small size. The calibration method, the plate design, the mathematical description of the error system as well as the identification of the parameters are described in detail. For identifying the error parameters, the least squares method and a constrained optimization problem are used. The functionality of this method was demonstrated in experiments that led to promising results, correlated with one of a laser tracker calibration. The modeling and identification of the error parameters is done for a gantry machine, but is not restricted to that type of robot.
title Geometric Robot Calibration Using a Calibration Plate
topic Robotics
url https://arxiv.org/abs/2510.25338