Ultrasonic sensor for double-sheet control
PEPPERL & FUCHS

Double-sheet monitoring is a special application for which through-beam sensors are ideally designed. In this application originating in the printing industry, an ultrasonic through-beam sensor measures paper or sheet thickness.

Ultrasonic sensors for double-sheet monitoring are suitable for detecting the difference between:

* No sheet, one sheet or double sheet
* Carrier material
* Carrier material with labels

Ultrasonic double-sheet monitoring is used in applications where the difference between carrier materials, labels and individual or double sheets must be detected automatically and at high speed to protect machines or prevent rejection. A complete system consists of an ultrasonic transmitter, an ultrasonic receiver and an evaluation unit, which may be separate or integrated into the receiver. The components are optimally tuned to each other when they ship from the factory and must not be used separately from each other.