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Print Mark Detection on Label Foil via Contrast Sensors 1

Print Mark Detection on Label Foil via Contrast Sensors 2

Print Mark Detection on Label Foil via Contrast Sensors 3

Print Mark Detection on Label Foil via Contrast Sensors 4

Print Mark Detection on Label Foil via Contrast Sensors

In the packaging industry, products are packaged in tubular bags on horizontal packaging machines. For exact package sizes, black print marks are applied to the foils, which are detected by contrast sensors and control the cutting process of the foil packaging. The sensors detect the marks despite frequent batch changes and different color combinations on the foil. Thanks to the integrated contrast mode, the print marks can also be reliably detected on a patterned background.

Contrast Sensors

Contrast sensors with switching or analog output measure the brightness of objects. Sensors with switching output compare the brightness level with a reference value in order to detect contrast marking, for example. Sensors with analog output provide the measured brightness as a proportional voltage signal in order to monitor brightness curves, for example.

Matching Products

The products listed here are ideal for use in this application.

P1PW003 Contrast Sensor

Range 30...40 mm Housing Cuboid compact Light Source White Light Speed 50 kHz Output PNP Circuit NC+NO

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P1PW004 Contrast Sensor

Range 30...40 mm Housing Cuboid compact Light Source White Light Speed 50 kHz Output NPN Circuit NC+NO

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P1PW001 Contrast Sensor

Range 30...40 mm Housing Cuboid compact Light Source White Light Speed 50 kHz Output PNP Circuit NC+NO

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P1PW006 Contrast Sensor

Range 30...40 mm Housing Cuboid compact Light Source White Light Speed 50 kHz Output NPN Circuit NC+NO

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P1PW005 Contrast Sensor

Range 30...40 mm Housing Cuboid compact Light Source White Light Speed 50 kHz Output PNP Circuit NC+NO

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