northwest Conductivity Vs Decay
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum  |  Detector testing reports  |  Topic: Conductivity Vs Decay 0 Members and 1 Guest are viewing this topic. « previous next »
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GARY
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« on: Sunday March 24 2019 13:53:02 AEDT PM »

A discussion on another forum in regards to creating test nuggets then I would agree that "Conductivity" of the test material relative to the IACS (the abbreviation for International Annealed Copper Standard) compared to Gold is a governing factor. Therefore Copper at 100%  or Aluminum at 70% being the closest to gold at 70% are ideal for creating test nuggets for depth comparisons.  

However it was also mentioned that the "Decay" rate of the material that PI machines look at and will vary due to size, shape and density and the decay rate of Lead and Gold are similar (but not the same) and are close enough to give good depth comparisons so then Lead would be ideal for creating test nuggets for depth comparisons.

So which is it, the "Conductivity"  of the material or "Decay" of the material best for creating test nuggets, except using Gold itself?

Gary.
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Dontbstme
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« Reply #1 on: Sunday March 24 2019 17:05:14 AEDT PM »

  
A discussion on another forum in regards to creating test nuggets then I would agree that "Conductivity" of the the test material relative to the IACS (the abbreviation for International Annealed Copper Standard) compared to Gold is a governing factor. Therefore Copper at 100%  or Aluminum at 70% being the closest to gold at 70% are ideal for crating test nuggets for depth comparisons.  

However it was also mentioned that the "Decay" rate of the material that PI machines look at and will vary due to size, shape and density and the decay rate of Lead and Gold are similar (but not the same) and are close enough to give good depth comparisons so then Lead would be ideal for crating test nuggets for depth comparisons.

So which is it, the "Conductivity"  of the material or "Decay" of the material best for creating test nuggets, except using Gold itself?

Gary.
Conductivity and Decay are related and not entirely separate in the detection process. Decay will depend on reactive component while Conductivity represents active component of the signals. Never the less in metal detectors both play role in the depth detection. This is the reason why all detectors as a general rule detect Iron better and deeper than any non-ferrous metal, because Iron represents both active and reactive (magnetic properties) component.
Conductivity and size of targets define the decay of their signal response.
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum  |  Detector testing reports  |  Topic: Conductivity Vs Decay « previous next »
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