Metal Detector Essay

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Metal Detector For my final project I made a metal detector. Metal detectors are very helpful in multiple ways to all kinds of people. First I will talk about what metal detectors are used for and what kind of people uses them. I will discuss what types of metal detectors are made in this paper. I will also talk about how metal detectors work. Finally, how these devices are beneficial for many people’s lives. Many people rely on metal detectors to do many different jobs. People that work around places such as airports, schools, government buildings, prisons, and even the scavenger digging in the back yard. These are very important because these have saved many lives for a couple of decades. These are highly used to find artifacts that have been lost for multiple years and treasures in the ocean floor. These are very helpful devices in today’s society that creates less havoc where they are used. These devices are made in numerous different forms. There are the common ones people use to look in the yard. There are miniature hand detectors that scan over people’s body. There are walking through metal detectors which are used in airports. Finally there are metal detectors that are disguised that are used in the military and even some movies overseas. I find these metal detectors to work in a very cool way. In using these there is a coil that is swept over the area being searched. These detectors use two coils for these devices. The first coil is the larger coil then there is a small coil which for metal detectors the smaller one is located inside the larger coil. In my application that I created it is located side by side. The low frequency is the most used because it can detect smaller objects. These metal detectors have current going back and forth through the coils causing an electromagnetic field. When it is over a metal object it sends a field back

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