N° 410
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Frequency control of turbo charger wheels
The frequency of turbo charger wheels should be controlled. At this, one of the blades of the wheel is coated with a fluorescent transparent lacquer.
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N° 330
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Detection of a transparent fluorescent label on transparent plastic film
A transparent plastic label should be detected on a transparent plastic film. It should be taken into account, that the label is fluorescent in using UV-light.
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N° 321
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Glue line detection on packaging paper
A glue line should be detected on packaging paper. At this, the glue is fluorescent if UV light is used.
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N° 47
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Color detection of fluorescent marks on wood plates
On wooden plates defects will be marked with a fluorescent marker. The fluorescent mark has normally a width of about 15mm and it can happen, that two of this marks lie 20 mm away of each other, but must be detected as two separate marks. Furthermore the fluorescent marks should be detected at a distance of 200 mm to the object and even a mark with a width of 5mm should be detected.
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