váltóadós

A váltóadós, commonly translated as a "bill acceptor" or "note acceptor" in English, is a device used in various automated machines, such as vending machines, self-service kiosks, and ticket machines, to verify and accept paper currency. These devices are designed to distinguish between genuine banknotes and counterfeit ones through a series of sensors and optical technologies.

The primary function of a váltóadós is to read the denomination and authenticity of inserted bills. When a bill is inserted, it passes through a scanning mechanism that typically employs multiple sensors. These sensors analyze various features of the banknote, including its size, thickness, color, magnetic ink properties, and ultraviolet (UV) fluorescence. Sophisticated algorithms compare these readings against a stored database of valid banknote characteristics.

If a bill is deemed authentic and matches the expected denomination, the váltóadós registers the payment and signals the machine to proceed with the transaction. If the bill is recognized as counterfeit or is of an unrecognized denomination, it is usually rejected and returned to the user. Some advanced váltóadós units can also store and track transaction data, providing valuable information for machine operators. The technology employed in these devices is continuously updated to counter evolving counterfeiting techniques.