Automatic laser beam alignment

S. L. Chen, L. Li, P. Modern, W. M. Steen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is well known that the pointing stability of a laser beam is decisive in determining the quality and efficiency of laser cutting, welding and drilling. Due to the instability of pointing for a long beam path which is increasingly used in material processing, there is a need for an automatic laser beam alignment system which is designed to accurately position laser beams to the working point of workstations. Such a system would require a device to automatically identify where the beam is. An instrument for doing this is described. The study presented here combines a rotating disk, having one slit, with a high speed optical sensor and a convergent lens to form a sensory unit to detect the laser beam position.

Original languageEnglish
Title of host publicationLIA (Laser Institute of America)
PublisherPubl by Laser Inst of America
Pages41-51
Number of pages11
ISBN (Print)0912035439
Publication statusPublished - 1991
EventProceedings of the Laser Materials Processing - ICALEO '90 - Boston, MA, USA
Duration: 1990 Nov 41990 Nov 9

Publication series

NameLIA (Laser Institute of America)
Volume71

Other

OtherProceedings of the Laser Materials Processing - ICALEO '90
CityBoston, MA, USA
Period90-11-0490-11-09

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Chen, S. L., Li, L., Modern, P., & Steen, W. M. (1991). Automatic laser beam alignment. In LIA (Laser Institute of America) (pp. 41-51). (LIA (Laser Institute of America); Vol. 71). Publ by Laser Inst of America.