We are all familiar with going to the ATM to withdraw cash from the account. In 1968, the Kreissparkasse Tübingen put the first model of an ATM into operation in Germany, and ATMs can now be found all over the world. Have you ever wondered what happens when you take money off the machine? ATMs have four to eight cash cassettes in which the bills are kept until they are paid out. The bills are then drawn from these to form the amount that is to be withdrawn. The notes are then transported to the output compartment via special conveyor belts. Various sensors also check how many notes are moving or whether the notes are sticking together. 

With our displacement sensor MTP-L, the machine can measure the status of the available bills in the cassette. If the height of the bills falls into a low range, the signal is given to refill the cash box. This prevents the machine from being able to issue any more money. 

More Information about our and rotary sensors: