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This paper presents a multioptics sensing system consisting of two photodiode sensors and two visual sensors for multisignals extraction. Five welding features, including visible light (V), laser reflection (R), keyhole size (K), metallic vapor on top of the material (PT) and at the bottom (PB), were obtained by way of signal processing and image processing. A new correlation coefficient of low-frequency...
When processing materials with laser beams, strong radiations and emissions occur, requiring a robust but accurate sensor system. Therefore, multiple sensors, such as an intelligently focusing camera, acoustic sensors and photodiodes, are integrated into a cognitive technical system using Artificial Neural Networks and other techniques for learning how to monitor and control the processing systems.
This paper deals with a seam tracking system of welding of tailored weld blanks based on active laser-triangulation. The system consists of DSP based vision camera and stripe-type laser diode. The total system is assembled into a compact module which can be attached ahead of welding torch and it has high dynamic performance in guiding the robot arm welder accurately over the seam. its structure, basic...
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