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Monitoring Empty Trays at the Airport with Long-Range Laser Distance Sensor

After being handed in at the airport luggage check-in counter, suitcases and bags are placed in plastic trays for further transport and transported via conveyor technology. This makes handling and identification of the objects easier. Before the suitcases are placed in the containers, it is important to ensure that the trays are properly emptied. To do this, a robot gripper turns the tray over. The long-range laser distance sensor installed above it measures the distance to the underside of the objects. If the distance to the bottom of the tray is within the tolerance, the tray is released for refilling.

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Long-Range Laser Distance Sensors

Long-range laser distance sensors work according to the principle of transit time measurement, which means that they cover large working ranges, so that objects can be reliably detected even at great distances. The emitted light can be switched off for these sensors, which eliminates temperature drift.

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