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Offline mackeTopic starter
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« on: August 06, 2016, 12:46:12 am »
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Hi I am trying to find a schematic for an Electromagnetic Ground Conductivity Meter.

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« Reply #1 on: August 06, 2016, 02:33:42 am »
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Quote:Posted by macke
Hi I am trying to find a schematic for an Electromagnetic Ground Conductivity Meter.

there is "resistivity meter" at the download section of the forum.
did you look at it?
it maybe what you are looking for.
here is the link to the English  text version

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http://www.thunting.com/smf/index.php?action=downloads;cat=22



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Offline mackeTopic starter
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« Reply #2 on: August 06, 2016, 04:03:15 am »
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Hi no a resistivity meter is used by probe contact with the ground. An EM ground conductivity meter is contactless. Underground archaeological features are detected by creating a magnetic field underground by applying an electric current that has a known frequency and magnitude through a sending coil. The currents spur a secondary current in underground conductors that is picked up by a receiving coil. Changes in the underground conductivity can indicate buried features.

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