1月9日 的 Metal detector-domestic 應用程式分析

Metal detector is used to detect magnetic materials as iron an steel. Does not feel gold or other non-magnetic materials. It uses the magnetometer and measures the magnetic field and feels the disturbance when placed close to an object. It also detects electric wires and equipment. It gives a visual signal together with both sound and vibrations after passing certain limits. Sound and vibration may be silenced if wanted.