"This myth is Busted"

[Nexus]

Er... no. It is not how the device was supposed to be operated, and that's why I think the ion mechanism should be examined. The Depth doubler was supposed to "charge" the soil for half an hour or so, and I believe it has to be accepted quite literally. If ions due to oxidation are present around a target, those should at least provoke some salt-like detection in a volume far exceeding the dimensions of a very target. I'll try to model that and see where it leads.
If there is nothing to it, no big deal. Nothing changes.

There is a basic science behind all things.
You can not charge the soil with anything, much less with ions. This charging is nothing but a marketing manipulation.
There can be no ions due to oxidation, because oxidation produces salts, not ions. Ion is a free particle under certain conditions and only for relatively small amount of time and you will find no free ions in any soil, ever.
All detection of metals is based on induction of Eddy currents and absolutely nothing else.

[6666]

There is a basic science behind all things.
You can not charge the soil with anything, much less with ions. This charging is nothing but a marketing manipulation.
There can be no ions due to oxidation, because oxidation produces salts, not ions. Ion is a free particle under certain conditions and only for relatively small amount of time and you will find no free ions in any soil, ever.
All detection of metals is based on induction of Eddy currents and absolutely nothing else.

I am not going to argue the toss with you or bet my sheep station, but have you actually tried this ground charging ? its a yes or no answer.

[WM6]

There is a basic science behind all things.
You can not charge the soil with anything, much less with ions. This charging is nothing but a marketing manipulation.
There can be no ions due to oxidation, because oxidation produces salts, not ions. Ion is a free particle under certain conditions and only for relatively small amount of time and you will find no free ions in any soil, ever.
All detection of metals is based on induction of Eddy currents and absolutely nothing else.

Probably soil chemistry is not a simple science, it is about electrons but is not limited to electronics.

[ivconic]

Most recently i discovered all the beauty of "Ignore list" option on this forum.
After 11 years of being here i started to use that option several days ago.
The sweetest thing that i saw on this forum so far!
I put several characters on my Ignore List and now forum looks much much better.
But i would like to ask administrators if there is a way also to prevent to see such crap posts even when are quoted by other members?
Is there any way to fix that?
I would be very pleased to solve that too.
I can't stand not even to see a single sentence written by some characters here.
Not because any other reason but because such pathetic characters are having indeed nothing to say here. Nothing truthful and nothing contributive.
And their presence is spoiling the topic pretty much.
Oi administrators! Is there any way you to fix this?
Is there any way me to choose who will join this topic or not?
How about offering us some moderator's privileges, so the one who started topic to be able to allow or disallow joining of others?
That's pretty good practice on some other forums.
Think about that for a while.
That's excellent method to prevent problems and deliberate distractions by various characters.
So many topics were been spoiled totally so far on this forum like that.
...
WM6 don't waste your energy on mindless ignorant illiterate remarks by some distractive characters here, just use Ignore List and enjoy!
Everything else you can read here:
http://www.njminerals.org/metaldetec...aloeffect.html

[ivconic]

Let's back to topic:
http://www1.udel.edu/soilchem/Roberts05ChemProc.pdf

[ivconic]

"...Adsorption is defined as the accumulation of ions at the
interface between a solid phase and an aqueous phase..."

http://nyackcommunitygarden.info/pdf...ls_in_Soil.pdf

[ivconic]

"...The ability of soils to adsorb metal ions..."
"...Adsorption is a major process responsible for accumulation of heavy metals..."

[ivconic]

https://dl.sciencesocieties.org/publ...ess=0&view=pdf

[WM6]

[QUOTE=ivconic;230018]

WM6 don't waste your energy on mindless ignorant illiterate remarks by some distractive characters here, just use Ignore List and enjoy!

[ivconic]

Ok.
But usually you cut off and toss to garbage the rotten and stinking flowers from a garden, right?
...
In short, i was hoping that something positive will evolve from this topic, in best words explained by Skippy:

...I think there would be some good science to be done there...

[Nexus]

I am not going to argue the toss with you or bet my sheep station, but have you actually tried this ground charging ? its a yes or no answer.

You can not charge the ground ever, because it is not a self contained unit like a battery. What you can do and what the Doubler is doing is passing current trough the soil that results in Eddy currents been formed in both metal targets and soil particles.
Tried it or not is irrelevant. What's relevant here is the scientific basis. And Halo effect have no basis in this case.

[Nupi]

This is one of my views on the "hallo effect phenomenon" explained in a simple way.

Oxidation is a resistor for current.
The coin received an insulating layer (Oxidation layer)
The generated eddy current by the electromagnetic field in the coin (that has been generated by the electromagnetic field of the coil) now is stronger and the detector can detect more easily (deeper)
This is because there are less current leakage to the soil through the oxide layer.

[ivconic]

This is one of my views on the "hallo effect phenomenon" explained in a simple way.

Oxidation is a resistor for current.
The coin received an insulating layer (Oxidation layer)
The generated eddy current en the electromagnetic field in the coin (that has been generated by the electromagnetic field of the coil) now is stronger and the detector can detect more easily (deeper)
This is because there are less current leakage to the soil through the oxide layer.

Again... read whole this fine article, lot of interesting facts:

http://nyackcommunitygarden.info/pdf...ls_in_Soil.pdf

@Davor; look up for "Computer Models" in that article.

"...1) calculate the distribution of free metal ions and metalligandcomplexes in a soils solution..."

[Nupi]

Again... read whole this fine article, lot of interesting facts:

http://nyackcommunitygarden.info/pdf...ls_in_Soil.pdf

.........................................

Again........ I have read it.

[ivconic]

Again........ I have read it.