Hi,
It is obvious that lots of people using metal detectors like to look for silver coins. Like many, there are times I wish I could just set my discrimination just above copper penny to get silver dimes, etc.
My White's DFX if set for 3 kHz only and normalization turned off does show a small VDI difference between coppers and even clad dimes and silver dimes in air tests. It seems tantalizingly close to being able to do the trick.
So the question for you techinical experts is this. Can a detector be designed for the sole task of trying to make the split in discrimination at this point as wide as possible? Perhaps a lower frequency of 1-2 kHz and all the discrimination resolution focused on the small range from copper penny to silver dime?
I realize ground effects and corrosion throw a wild card in but frankly I'm at work and a bit bored so thought I'd see what you guys think.
Have a great Thanksgiving!!
Steve Herschbach
It is obvious that lots of people using metal detectors like to look for silver coins. Like many, there are times I wish I could just set my discrimination just above copper penny to get silver dimes, etc.
My White's DFX if set for 3 kHz only and normalization turned off does show a small VDI difference between coppers and even clad dimes and silver dimes in air tests. It seems tantalizingly close to being able to do the trick.
So the question for you techinical experts is this. Can a detector be designed for the sole task of trying to make the split in discrimination at this point as wide as possible? Perhaps a lower frequency of 1-2 kHz and all the discrimination resolution focused on the small range from copper penny to silver dime?
I realize ground effects and corrosion throw a wild card in but frankly I'm at work and a bit bored so thought I'd see what you guys think.
Have a great Thanksgiving!!
Steve Herschbach
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