How it works: The metal detector uses the principle of electromagnetic induction and uses a coil through which alternating current passes to generate a rapidly changing magnetic field. This magnetic field can induce eddy currents inside the metal object. Eddy currents generate a magnetic field, which in turn affects the original magnetic field, causing the detector to chime.
Metal detector is a high-performance metal detector specially designed for security. There are three main categories: electromagnetic induction type, X-ray detection type, microwave detection type, which are electronic instruments used for metal detection and can be used in many fields.
In addition to the basic detection alarm function, the current metal detectors generally provide many special functions carefully developed by various manufacturers, such as:
The function of surface balance: to help the machine to correctly compare whether metal objects are found instead of interference.
Selection function: Use the different characteristics of different metal objects to respond to the magnetic field to select or exclude different types of metal objects and give an alarm.
Depth indication, which can inform the possible depth of the detected metal objects buried.
Marking of the area: It can display the size of the detected metal object, and provide the operator to judge whether it meets the needs of excavation.
Voice prompts: Operators can be reminded immediately by voice, such as the lighting of lights - providing lights to facilitate night operations.
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