Does an earthquake detector have radiation?
Safety in the scope of metal detectorCheck gate, the old X ray is used to detect, and now also through the electromagnetic field to detect metal objects. But the railway station, bus station and airport are rightLuggage inspection is generally X ray, but its inspection is hidden in the door curtain, even if the staff next to it will not be affected, the overall frequency of the human body orSafe。
The metal detector generates a high-frequency variable magnetic field through an oscillator connected in the middle of the transmit coil, and when the metal impurity enters the magnetic field, the magnetic field is dryAn alarm signal will be generated if disturbed. Thus, metal detector is electromagnetic detection, no radiation, and therefore no harm to people.
