These walk through metal detectors are used
in many cases like for instance they are used to enter prisons, airports,
banks, offices, courthouses to find if there are any hidden metal weapons on
anybody’s body. These detectors were first build in 1960’s and were used to
find minerals underground and for other industrial purposes. The detection for
which it was uses was land mines, weapons which included guns and knives and
treasure hunting as well. Walk
through metal detector is also used to find pipe wires and concrete buried
in floors and walls and also to detect steel bars in the construction industry.
Walk through magnetometer are also used for similar purposes as it is also a
device which detects metals through magnets. These are usually used to measure
the earth magnetic field and are also used to locate the directions or the
magnet under the earth helps the device to detect things under the ground. Walk through magnetometer is similar to
the detector therefore it is also used in prisons and at airports for checking
purposes by the people.
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