A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. The unit itself, consists of a control box, and an adjustable shaft, which holds a pickup coil, which can vary in shape and size.
If the pickup coil comes near a piece of metal, the control box will register its presence by a changing tone, a flashing light, and or by a needle moving on an indicator. Usually the device gives some indication of distance; the closer the metal is, the higher the tone in the earphone or the higher the needle goes.
The simplest form of a metal detector consists of an oscillator producing an alternating current that passes through a coil producing an alternating magnetic field. If a piece of electrically conductive metal is close to the coil, eddy currents will be induced (inductive sensor) in the metal, and this produces a magnetic field of its own. If another coil is used to measure the magnetic field (acting as a magnetometer), the change in the magnetic field due to the metallic object can be detected.
Metal detector basic communication settings
Any type of detector or metal detector that has settings for distinguishing and discriminating targets and metals, gold and silver also has side settings, which are side settings to increase the performance of the detector or metal detector in distinguishing targets from each other or other sources.
Metal Detector Advanced Technology
In the construction of a metal detector and any type of detector it is not important how many parts are used but it is important that the design of the metal detector or detector is with advanced technology and according to the settings an advanced metal detector or advanced detector with an excellent design can be made with the least number of parts at the time of testing it can recognize and separate gold and all kinds of metals in depth and that the metal detector during testing and practice according to the instructions of the training guide can recognize and separate gold in depth It proves the Detector.
