Whenever you enter a high security zone or even a shopping mall, you are checked thoroughly to ensure that you are not carrying any metal objects with you. While these checks are done by body frisking at times, most of the times the Garrett metal detectors are used.
Areas of application
While the very mention of the term metal detector comes the picture of people getting screened at the entry of events, the airport, at sports complexes and innumerable other places, the usage of metal detectors is not limited to only security screening. They are extensively used in many other fields that include item recovery, mining, archeological and geological expeditions, civil engineering works, industrial purposes, and many more.
There are many industrial Garrett metal detectors, which are used in the manufacture of a number of commodities. These include food, textile, beverages, chemicals, pharmaceutical, packaging industries, just to name a few. The presence of metal pieces of metal shards in any of these commodities could bring very serious troubles. Hence, they are subjected to special screening using various types of metal detectors such as the XP metal detectors or Tesoro metal detectors.
Working principle of a metal detector
While functioning of different Garrett metal detectors will vary from each other, but on the whole the working principle of all metal detectors is the same. During scanning an object the metal detectors would raise an alarm by means of a beep (not always a loud one) whenever it encounters a metal piece in the object.
So how do the Garrett metal detectors understand that there is a presence of a metal object inside the commodity that is being scanned? Before answering this, it is important that you understand the anatomy of a metal detector. A metal detector comprises of just three parts; a shaft, a search coil and a control box. Depending on the model, there could be a stabilizer attached to a metal detector.
The control box contains all the necessary circuitry, batteries, microprocessor and other controls of the metal detector. The shaft is the connecting link between the control box and the search coil. It ensures that while the search coil is searching for metals at the surface of an object, the person who is controlling the metal detector is not very close to the surface. It is the search coil which is the key player in this whole setup. Usually, looking like a small size steering wheel of a car, the search coil is the part of the metal detector that actually detects the presence of metal by means of magnetic field that gets generated in the search coil through the batteries in the control box.
Modern day metal detectors are designed to operate in any terrain and any surface to find metals of various types. These metal detectors are widely used to save the world from any incidence that could prove to be dangerous for mankind. Metal detectors help in identifying a problem even before it occurs.
Get additional information here at http://www.treasurelanddetectors.co.uk/metal-detectors/garrett.html.