Acousto-magnetic electronic article surveillance (EAS) tag. Such tags are placed inside or outside merchandise packages to prevent shoplifting. Inside the tag has a strip of ferromagnetic magnetostrictive metal. When passed through a detector that emits periodic magnetic bursts at 58 kHz the strip starts to vibrate causing a change in magnetization and induces an AC voltage in the receiver antenna | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 2995 px × 4500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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