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Presence Check of Nonwoven Fabric on Coffee Capsules with Reflex Sensors

In order for hot water in coffee machines to be pressed evenly through the coffee capsules and thus ensure a uniform taste, wafer-thin white nonwoven fabric must be inserted into the capsules. Once the coffee powder has been poured into the capsules and the nonwoven fabric has been placed on it, energy reflex sensors check the presence of the nonwoven fabric. Mounted above the conveyor belt, they reliably detect the difference between the darker coffee powder and the white nonwoven fabric – even at high belt speeds.

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Energetic Reflex Sensors

Reflex sensors check objects for presence, check stack heights or perform counting tasks. They are used when objects need to be detected without a defined background. For this purpose, they use red light or infrared light according to the energy principle.

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