Improving coaxial measurements in laser welding by correcting distortions of a laser focus lens with a wide field of view

J.O. Entzinger, D. Iakovou, Ronald G.K.M. Aarts, J. Meijer

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

A compact, lightweight, and multifunctional head for robotic laser welding applications has been equipped with a camera to provide a real time image stream of the work piece for seam teaching, tracking, and inspection purposes [D. Iakovou, R. G. K. M. Aarts, and J. Meijer, “Integrated sensors for robotic laser welding,” in Proceedings of the Third International WLT Conference on Lasers in Manufacturing, Munich, Germany (AT-Fachverlag GmBH, Stuttgart, 2005), pp. 121–126; D. Iakovou, R. G. K. M. Aarts, and J. Meijer “Sensor integration for robotic laser welding processes,” (paper No. 2301), in Proceedings of the International Congress on Applications of Lasers and Electro-Optics (ICALEO), Miami, 2005 (unpublished)]. The camera uses part of the laser focusing optics. Research has been done to identify and correct for positioning errors introduced by the optical system. A robust camera and lens calibration method has been developed. Calibration and seam detection experiments have been performed and the results were used for seam tracking
Original languageUndefined
Pages (from-to)141-148
Number of pages8
JournalJournal of laser applications
Volume19
Issue number3
DOIs
Publication statusPublished - 2007

Keywords

  • image undistortion
  • Seam tracking
  • IR-79019
  • Image Processing
  • Laser welding
  • camera calibration
  • METIS-239834

Cite this

@article{6041fb6416c441a68461ccb9611530bd,
title = "Improving coaxial measurements in laser welding by correcting distortions of a laser focus lens with a wide field of view",
abstract = "A compact, lightweight, and multifunctional head for robotic laser welding applications has been equipped with a camera to provide a real time image stream of the work piece for seam teaching, tracking, and inspection purposes [D. Iakovou, R. G. K. M. Aarts, and J. Meijer, “Integrated sensors for robotic laser welding,” in Proceedings of the Third International WLT Conference on Lasers in Manufacturing, Munich, Germany (AT-Fachverlag GmBH, Stuttgart, 2005), pp. 121–126; D. Iakovou, R. G. K. M. Aarts, and J. Meijer “Sensor integration for robotic laser welding processes,” (paper No. 2301), in Proceedings of the International Congress on Applications of Lasers and Electro-Optics (ICALEO), Miami, 2005 (unpublished)]. The camera uses part of the laser focusing optics. Research has been done to identify and correct for positioning errors introduced by the optical system. A robust camera and lens calibration method has been developed. Calibration and seam detection experiments have been performed and the results were used for seam tracking",
keywords = "image undistortion, Seam tracking, IR-79019, Image Processing, Laser welding, camera calibration, METIS-239834",
author = "J.O. Entzinger and D. Iakovou and Aarts, {Ronald G.K.M.} and J. Meijer",
year = "2007",
doi = "10.2351/1.2567495",
language = "Undefined",
volume = "19",
pages = "141--148",
journal = "Journal of laser applications",
issn = "1042-346X",
publisher = "Laser Institute of America",
number = "3",

}

Improving coaxial measurements in laser welding by correcting distortions of a laser focus lens with a wide field of view. / Entzinger, J.O.; Iakovou, D.; Aarts, Ronald G.K.M.; Meijer, J.

In: Journal of laser applications, Vol. 19, No. 3, 2007, p. 141-148.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

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AU - Iakovou, D.

AU - Aarts, Ronald G.K.M.

AU - Meijer, J.

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AB - A compact, lightweight, and multifunctional head for robotic laser welding applications has been equipped with a camera to provide a real time image stream of the work piece for seam teaching, tracking, and inspection purposes [D. Iakovou, R. G. K. M. Aarts, and J. Meijer, “Integrated sensors for robotic laser welding,” in Proceedings of the Third International WLT Conference on Lasers in Manufacturing, Munich, Germany (AT-Fachverlag GmBH, Stuttgart, 2005), pp. 121–126; D. Iakovou, R. G. K. M. Aarts, and J. Meijer “Sensor integration for robotic laser welding processes,” (paper No. 2301), in Proceedings of the International Congress on Applications of Lasers and Electro-Optics (ICALEO), Miami, 2005 (unpublished)]. The camera uses part of the laser focusing optics. Research has been done to identify and correct for positioning errors introduced by the optical system. A robust camera and lens calibration method has been developed. Calibration and seam detection experiments have been performed and the results were used for seam tracking

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KW - IR-79019

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KW - Laser welding

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