Metal detectors rely on the ability of metal to produce a tension when it moves through a magnetic field. The metal detector has a coil of electrical wire that produces the magnetic field. When metal moves in this field, a voltage occurs that interferes with the magnetic field.
Metal detection is a hobby enjoyed by a number of people all over the world. However, many people want to get into it discouraged by the exorbitant price of metal detectors. Fortunately, it is quite simple to build a working detector of a couple of household items.
How to make simple metal detector at home
Find gold with a homemade detector
Radio Calculator Metal Detector
