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Proceedings Paper

Smart optical distance sensor for automatic welding detection
Author(s): Michael Kahl; Stefan Rinner; Andreas Ettemeyer
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Paper Abstract

In this paper, we describe a simple and cost-effective method and measuring device for automatic detection of welding. The sensor is to be used in automatic darkening filters (ADF) of welding helmets protecting the operator from intensive hazardous UV radiation. For reasons discussed in detail below, conventional sensor principles used in ADF are being out-dated. Here, we critically revise some alternatives and propose an approach comprising an optical distance sensor. Its underlying principle is triangulation with two pin-hole cameras. The absence of optical components such as lenses results in very low cost. At first, feasibility is tested with optical simulations. Additionally, we present measurement results that prove the practicability of our proposal.

Paper Details

Date Published: 22 June 2015
PDF: 9 pages
Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 952526 (22 June 2015); doi: 10.1117/12.2190736
Show Author Affiliations
Michael Kahl, Interstaatliche Hochschule für Technik Buchs NTB (Switzerland)
Stefan Rinner, Interstaatliche Hochschule für Technik Buchs NTB (Switzerland)
Andreas Ettemeyer, Interstaatliche Hochschule für Technik Buchs NTB (Switzerland)


Published in SPIE Proceedings Vol. 9525:
Optical Measurement Systems for Industrial Inspection IX
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves, Editor(s)

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