Need worked metal detector circuit

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mohsen 2012

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Hi guys , i search for a tested and worked project for professional underground metal detector circuit .
So any one have it please help me and thanks
 

I want to find the gold undeground
 

A metal detector's response is in the form of slight changes of its oscillating frequency, as it gets close to metal (or various dense substances). The more sophisticated instruments have a setting which discriminates certain types of metals. However none have a setting which detects gold and only gold.

Even if we might find a schematic for a professional model, it requires a lot of experience to get familiar with its operation. It's common to dig up 'throwaway' objects. With luck you might find precious metals underground within range of detection, because the sensing method only works a few inches down.
 

A knowledge of local and international geology, mining and history plus research into folk tales of shiny lands or rivers with god dust in them would be more useful than walking around with a metal detector.
 

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