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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.

Let us see how these anti-theft tags works.

Courtesy: Applied Science


The post Video Tutorial: How Anti-Theft Tags Work – Magnetostriction appeared first on Electronics For You.

Source: Video Tutorial: How Anti-Theft Tags Work – Magnetostriction

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