What is a metal detector gate?
A metal detector is a device that helps detect metal objects even if they are hidden in many layers of nylon or plastic, extremely accurately and easily.
How does a metal detector work?
This device detects metal by emitting ultrasonic waves and will signal if a metal object is detected.
If more detailed then
- Metal detectors operate based on the phenomenon of electromagnetic induction.
- The general principle of the gate is that the machine uses a transmitter coil to create an electromagnetic field and a receiver coil to collect the induction field in the detection space.
- If there are no metal objects in the search area, the receiver coil only picks up the normal field. If there is metal in this environment, an induced current will appear and it will immediately deflect the field in the receiver coil region.
- The level of this field deviation will depend on the conductivity, the size of the object and the distance from the object to the probe.
- Specifically, if a piece of metal is detected in the exploration area. At this time, the changing electromagnetic field will create an induction current and send a feedback signal to the machine. At that time, users can detect the metal objects they are looking for.
Weather-resistant metal detector model
Where are metal detectors commonly found?
This metal detector is often equipped in government offices, banks, exhibition halls, factories, prisons, hotels… Helps control and protect security best because it is easy to Easily detect objects made of gold, silver, iron, copper or alloys, thereby limiting unpredictable attacks that cause riots.