Handheld devices precisely locate the presence of metal objects on a person and are extremely portable, easy to use and efficient.ArchaeologyFirst used in 1958 by a military historian to detect firing lines at a battle, metal detectors began to be used extensively in archaeology.
>>>Metal detectors, fundamentally work on the same principle. Metal detectors use electricity to create magnetism that creates more electricity somewhere else. Here's how!Simply put, a coil in metal detectors is used to interact and attract metallic elements on the ground.
>>>Some people may be able to satiate their love for coin collecting through metal detectors. Metal detection gives people the liberty to collect age old colonial coins and new age wheat pennies!
>>>Lost and foundSeveral people use metal detectors for discarded or valuable gadgets like mobile phones, cameras and other man-made objects that are lost or misplaced.
>>>The magnetic field of the metal detector changes the magnetic and hence the electric field of the metal object. This change in electromagnetism of the metal object is picked up by the receiver circuit of the metal detector.
>>>VLF or Very Low Frequency metal detectors work in low frequencies unlike conventional metal detectors have a wider range of frequency to an extent that these VLF detectors can find a comparatively small nugget of a gold as compared to the other metal detectors.
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