The so-called acousto-magnetic system refers to the use of the resonance phenomenon generated by the tuning fork principle to achieve almost zero false alarm operation.
When the frequency of the transmitted signal (alternating magnetic field) is consistent with the oscillating frequency of the acousto-magnetic tag, the acousto-magnetic tag will cause resonance similar to a tuning fork and generate a resonance signal (alternating magnetic field); when the receiver detects it continuously 4-8 times (adjustable) ) After the resonance signal (once every 1/50 second), the receiving system will issue an alarm.
The characteristics of the acousto-magnetic system are high anti-theft detection rate, almost zero false alarms, not shielded by metal tin foil, good anti-interference, and protected exit width (the maximum width of a single system can protect 4 meters).