The paper industry uses paper reels to produce paper and cardboard.
The quality of the final product depends on the quality of the paper rolls used, which relies on accurate measurement of the roll winding stage. 
Datasensing UK1 ultrasonic sensors measure the winding stage of paper rolls.
The measured distance is then used to calculate the winding stage of the paper roll.
UK1 ultrasonic sensor is non-invasive and does not damage the paper roll, measuring the winding stage of paper rolls accurately and reliably.