How Do Metal Detectors Work?

Answer

Metal detectors work by using electromagnetic induction in order to detect metal and by using an oscillator that has a current that creates a magnetic field. At the end of the current is a coil, if the coil detects that there is metal nearby an additional current is sent along the coil and the metal detector alerts the user of its presence.
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How Do Metal Detectors Work?
VLF, or Very Low Frequency, metal detectors are also known as induction balance detectors. They function by means of the disc-like plate which makes up the bottom of the device. The disc or "Broom" is actually made up of two separate sets of wire coil.... More »
Difficulty: Easy
Source: www.ehow.com
Metal detectors being the fascinating machines they are use a technology called pulse induction. It checks the ground with a large electromagnetic pulse and observes the span of time it takes for the voltage to reduce to ambient levels. If there is a conductive object around the ground it takes longer time for the voltage to decrease.
Metal detectors work by being able to pick up on fields that are released by a metal substance. There are various types of metal detectors that can pick up on these fields in different distances. You can find more information here: http://www.wisegeek.com/how-does-a-metal-detector-work.htm
Q&A Related to "How Do Metal Detectors Work"
In my opinion the best metal detector available is the Minelab Quattro. The manufacturer's suggested retail price on this metal detector is $995.00. It is known as a 'silver magnet.
http://answers.ask.com/Business/Other/what_is_the_...
1. Buy a metal detector. There are various types of detectors and price ranges also vary. Some metal detectors are made for water searching. Many detectors will find items at a depth
http://www.ehow.com/how_2077409_use-metal-detector...
1. Decide what your main interest is, for example looking for coins, artifacts, or just anything that's down there. 2. Figure out what kind of money you want to spend. 3. Go to the
http://www.wikihow.com/Buy-a-Metal-Detector
In 1881, Alexander Graham Bell. invented the first metal detector.
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Explore this Topic
Most metal detectors work by sending out electromagnetic field waves. These waves cause an object in the ground to emit a magnetic field. The objects magnetic ...
Most metal detectors work by sending out electromagnetic field waves. These waves cause an object in the ground to emit a magnetic field. The objects magnetic ...
Most metal detectors work by sending out electromagnetic field waves. These waves cause an object in the ground to emit a magnetic field. The objects magnetic ...
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