The main part of metal detectors is the control box, shaft, and
search coil. Control box which has speaker, batteries, and
microprocessor coordinates all activities. To protect the food source
many companies use metal detectors to check for metal contaminates in
the food, and some drug companies use the metal detectors to check for
the same thing in drugs.
Besides metal detection, a walk-through
metal detector includes and interface for an operator and a control
unit plus environmental tolerance, electro magnetic compatibility, and
the assurance of quality control. The control box is the brain of a
metal detector. The magnetized metallic objects under the ground send a
signal to the control box. Metal detectors that are used in mining need
to be compact because of the space restrictions so the control unit and
the search coil are integrated into a single unit.
comes off the shaft at an angle, which allows it to be held parallel to
the ground. Hand held detectors come in various types, professional,
commercial, all-purpose, gold metal, beach and metal that is a relic.
Many people use metal detectors to comb the beach for treasures, people
are looking for coins, or any other type of metals that might produce a
wealth of income. If you are walking along a beach you might come
across many people with their instruments looking for these treasures.
Since 911 security has gotten tougher and many airports and schools
have turned to metal detectors, as well and government buildings, hand
held metal detectors are often an important part of security procedures.
great method of locating and preventing the use of dangerous items such
as handguns or knives is the hand held metal detector. They are hand
held security metal detectors and walk through metal detectors. Walk
over or hand held models of metal detectors are normally used in
Best rated walk through metal detectors have high
target selection, low rate of false alarm, consistent detection, and a
two way directional system. Cheap metal detectors are available in hand
held, waterproof, and walk through models. Walk through metal detectors
offer quick and effective processing.
Underwater metal detectors
can cost around $400-$600. Underwater metal detectors are widely used
to locate metallic objects under water. Underwater construction
companies use underwater metal detectors for pipeline or cable locating
functions. Some of the underwater metal detectors can adjust the search
Advanced security metal detectors use low radiation x-rays
for screening. Many metal detectors have microprocessor technology to
check for coarse grained food in cornflakes, popcorn and noodles.
Advanced gold detectors can also resist dust and moisture. Some of the
advanced gold metal detectors have three modes for speed tracking.
the price of a metal detector starts from $65. Some sites offer price
discounts. Most sites provide a price list for metal detectors. The
price of metal detectors may vary, based on features and functions. If
you are just starting out it is a good idea to purchase an inexpensive
model before sinking the dollars into the hobby.