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Common metal detectors work by sending out a radiofrequency energy signal. This frequency will change slightly when the 'antenna' is in close proximity of various metals.
Many metals will absorb this energy. The detector notices this absorption and can these days indicate what metal it is and even the distance to the metal.
Some metals also reflect this energy signal and when a reflection is picked up, this can also be used to indicate type and size of metal object.
High tech detectors use a combination of many methods of which increases its accuracy drastically.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoBasically,in the case of metal detectors used to search the ground, a signal pattern is transmitted from the search coil into the ground. When the signal comes in contact with metal, there will either be an audio signal, a flashing light, or vibration.The same applies for metal detectors used in security checks.
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Where can you find precious metal in ground?
I am not sure... But I would suggest using a metal detector. Hope it works!
Does a homemade metal detector work better over soil or sand?
A homemade metal detector works better over sand. It works the Same both of them but it takes a longer time to find the metal in the soil. Try it at home just grab soil sanda radio and a calculator. Also a piece of metal .
How rain detector works?
How does a rain detector works
What are the difference between sensor and metal detector?
metal detector is sensor
What metal can a metal detector detect?
A metal detector can detect all types of metal....depending on in what type of soil it is in.
When was the metal detector made?
The metal detector was invented in 1931 by Gerhard Fisher.
How do you bypass a metal detector with weed on you?
A metal detector will not find vegetable matter.
Is there a metal detector guy on the beach?
Depends on if he's a quantum "metal detector guy". If he is, then maybe.
How do you find the best metal detector?
Look for the metal detector with the most discoveries and deepest penetration.
Metal detector model zalota from Russia?
is there any metal detector company by the name "Zealot"
Can you walk through a metal detector with your inhaler in your pocket without the metal detector going off?
it depends if the inhaler is metal
How do you get metal through metal detectors?
In general, you can't get metal through metal detectors. Only the smallest bits of metal will not cause a metal detector to alarm. If the sensitivity of the detector is set too high, it may be possible to get a small piece of metal past the detector, but that is something that cannot be counted on.
