Differences between AM acoustic magnetic systems and RF radio frequency systems
What are the differences between acoustic magnetic anti-theft systems and radio frequency anti-theft systems?
When choosing an EAS supermarket anti-theft system, should one opt for an acoustic magnetic anti-theft system or a radio frequency anti-theft system? What are the differences between the two systems?
The main differences between AM acoustic magnetic anti-theft systems and RF radio frequency anti-theft systems include working principles, working performance and prices, etc. The specific differences are as follows:
1. Different working principles: The AM acoustic magnetic anti-theft system takes advantage of the physical principle that the tuning fork only resonates when the oscillation frequency is the same, achieving almost zero false alarm operation. When the acoustic magnetic system label fixed on the product enters the detection area of the system, resonance will occur, but an alarm will only be triggered after the receiver receives four consecutive resonance signals (once every 1/50 second). The RF radio frequency anti-theft system utilizes the principle of radio frequency. The transmitting antenna emits a frequency modulation signal of 7.5 to 8.5MHz, generating an alert electric field between it and the receiving antenna. When an induction tag enters the electric field, resonance occurs, triggering an alarm.
2. Different working performance: The equipment detection rate and anti-interference ability of the AM acoustic magnetic anti-theft system are both higher than those of the RF radio frequency anti-theft system, while the false alarm rate of tags is lower than that of the RF radio frequency anti-theft system.
3. Different prices: The price of the AM acoustic magnetic anti-theft system is generally a little higher than that of the RF radio frequency anti-theft system.
4. Market share: As acoustic magnetic anti-theft devices have slightly better performance than radio frequency anti-theft devices, most retail stores tend to choose acoustic magnetic anti-theft devices, and naturally, their market share is higher.
