Hand
Held Metal Detector, UK Company supplying Metal Detectors nationwide,
for sale online.
Hand Held Metal Detector
The operation of a hand held metal detector is based upon the principles
of electromagnetic induction. Metal detectors contain one or more inductor
coils that
are used to interact with metallic elements on the ground. The single-coil
detector is a simplified version of one used in a
real hand held metal detector.
A pulsing
current is applied to the coil, which then induces a magnetic field.
When the magnetic field of the coil moves across
metal, the field induces electric
currents (called eddy currents) in the coin. The eddy currents induce
their own magnetic field, shown in red, which generates an opposite
current in the coil, which induces a hand held metal detector signal
indicating the presence of metal.
Hand
Held Metal Detector
