Detection of Contrast Marks on Chocolate Packaging Using Contrast Sensors
In the packaging industry, chocolate is packaged in tubular bags on horizontal packaging machines. To ensure that each package is the same size, contrast marks are applied to the foil packaging. A contrast sensor reliably detects these marks at high belt speeds. This allows the foil cutting process to be precisely controlled. Thanks to their compact format and universal mounting options, the sensors can be optimally integrated into small packaging systems even in confined spaces.
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.
