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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 12 — Jun. 15, 2013
  • pp: 2086–2088

Characterizing weld pool surfaces from polarization state of thermal emissions

Nicolas Coniglio, Alexandre Mathieu, Olivier Aubreton, and Christophe Stolz  »View Author Affiliations


Optics Letters, Vol. 38, Issue 12, pp. 2086-2088 (2013)
http://dx.doi.org/10.1364/OL.38.002086


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Abstract

In this Letter, a vision-based remote sensing methodology is proposed to measure the topography of weld pool surfaces from one single view. Thermal radiations emitted by the hot liquid metal at a wavelength within the arc plasma blind spectral window are acquired by a wavefront division polarimetric system. The refractive index of the liquid metal and the topography of the weld pool surface are inferred from the polarimetric state of the thermal radiations.

© 2013 Optical Society of America

OCIS Codes
(150.6910) Machine vision : Three-dimensional sensing
(160.3900) Materials : Metals
(110.5405) Imaging systems : Polarimetric imaging

ToC Category:
Imaging Systems

History
Original Manuscript: April 11, 2013
Revised Manuscript: May 14, 2013
Manuscript Accepted: May 14, 2013
Published: June 10, 2013

Citation
Nicolas Coniglio, Alexandre Mathieu, Olivier Aubreton, and Christophe Stolz, "Characterizing weld pool surfaces from polarization state of thermal emissions," Opt. Lett. 38, 2086-2088 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-12-2086

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