Sunday, November 29, 2015

How anti-theft tags work - magnetostriction

Anti-theft tags contain a tiny mechanical oscillator that is activated by a magnetic field.  The detectors at a shop's doorway can detect the oscillation magnetically. The tag can be activated and deactivated by magnetizing or demagnetizing it, respectively.

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1 comment:

  1. Nice post regarding anti theft. Do anyone know where can i buy a good antitheft bobby backpack in pakistan at a reasonable rate? Do let me know in rely please. thank you!