Metal Detectors

Written by Beth Hrusch
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Metal detectors have two primary applications in everyday life. They are used to scan objects at public facilities such as airports, schools and prisons, and they are a tool for finding metal objects buried underground or otherwise hidden from view. The typical metal detector is a relatively simple device, lightweight and easy to operate. For the average person, it will be used to indulge the hobby of collecting treasure.

Metal Detectors Help Find Treasure

The construction of the metal detector is simple. A stabilizer, located at the top, keeps the unit from shaking for a better reading. A control box is located on the shaft of the detector and contains the controls and microprocessor. The shaft connects the control box and the coil, and the coil at the bottom actually senses the metal. It works much like an antenna.

Headphones that connect to the control box allow the operator to hear the sound of metal being detected. Once the detector is turned on, it is moved over the ground in a sweeping motion. The coil senses metal and delivers a signal in the form of clicking or beeping noises. Some metal detectors have advanced featured such as displays that reveal what kind of metal has been detected and how deep in the ground it is buried.

Metal detecting is a hobby that has grown in popularity in recent years. It allows the average person to feel the joy of discovery without spending a lot of money or having to travel far from home. Treasure is found everywhere from the local beach to one's own back yard. Metal detectors help you find it.


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