The banknotes have more and more security measures to facilitate the recognition of the legitimate banknotes, therefore the banknote counters must incorporate the most advanced detection sensors, in order to maximize the counterfeit banknotes detection:

Ultraviolet sensor (UV)

It is a safety measure that can be seen using an ultraviolet light lamp. hese ultraviolet measures are highlighted in yellow and red on the banknote. As it’s shown in these images the marks are place always on the same positions on all the bank notes but the small ones are located randomly in a different position in each banknote.

On the banknote front side:

Small fibers marks embedded in the paper in different colours (located randomly).
· Some yellow stars of the EU flag.
· Small yellow circles.
· A big yellow circle.

On the banknote back side:

· You can see small fibers marks embedded in the paper in different colours.
· A quarter of a circle.
· The serial number arranged horizontally.
· Vertical red band with the value written (€ 100).

(The location of these security zones may change according to each bank note denomination.)

Infrared sensor

Scans for the presence of IR ink. IR security marks can be observed with infrared light, leaving only the areas that are impregnated visible.

Counters that incorporate CIS (Contact Image Sensor) technology detect IR ink more precisely because, they do check IR presence, but at the same time they verify its contour and volume.

On the banknote front side:

· Denomination banknote value
· Right part of the main motif
· The silver holographic band

On the banknote back side:

· Denomination banknote value
· Serial number (horizontal) printed in magnetic ink.

(The location of these security zones may change according to each bank note denomination.)

Imagen1a

Magnetic sensors (MG-MT)

Analyze the marks of the banknote with magnetic ink charge. These sensors identify and verify that the signal strength is correct.

· Magnetic thread
· Serial number (horizontal) printed in magnetic ink.
· Europe map area printed in magnetic ink.

Image scanning (CIS)

Recognition of the characteristics of the banknote by image. Verifies that the image exactly matches with the one of a genuine banknote. Identifies and also verifies the location of the value number, the security window, the watermark, the serial numbers, logos, proportionality and colors.

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