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Color sensors for automatic detection of weld spots

Brass strips are joined based on the spot welding method. CFO color sensors are used to automatically recognize the weld spots prior to further processing. The multi-teach function allows for the color shades of the shiny weld spots to be taught-in to color groups. When the sensor recognizes a weld spot, an output signal is output to the control system in order to initiate further processing. High measuring rates also allow for fast moving strips to be detected reliably.