Estimation of optimal wavelength of light-ers used in technical vision systems for arc welding

摘要

Main technical characteristics of existing optical sensors used in systems of technical vision of arc welding are given. Spectral characteristics of welding arc to determine local minimums of luminosity in the range of wave length from 500 to 1100 nm are studied. Ranges of wave lengths of illuminator operation are recommended to increase the signal-noise ratio of arc welding.