Measuring channel of the Optosonic system
Optical detection of coloured contamination doubled with ultrasonic detection of colourless material

The raw material will first be presented to the Acoustic Sensor and thereafter to the Optical Sensor.
The Acoustic Sensor will emit ultrasound waves. A contamination with compact surface structure like plastic will reflect these waves into the receiver. The receiver will thereafter trigger the ejection device.
The Optical Sensor consists of standard fluorescent light tubes and custom made photo sensors array. A colour contamination reflects less light to the photo sensor array which thereafter will trigger the ejection device.
Only the Pneumatic Valves placed in front of the contamination will be activated.
The duct opposite the valves, presents an opening through which the contamination is blown into the Waste Container.