Halo Effect - WTF !!!!

[Qiaozhi]

R2 should be a capacitor...if you use shoes and it´s not raining... :-)

Or there are no snakes and poisonous insects around.

[Tinkerer]

Human body's sensitivity to magnetic fields

Maybe this is more clear... or not?

I read somewhere that one way to test a persons capability to work with LRL's, is to run a magnetic field test.

Bury a wire and connect a battery with a potentiometer in series to the wire. Use ever smaller current to be detected by the LRL man.
If the LRL man can detect micro Amps, he has a good chance to be able to detect buried treasure.

Tinkerer

[Tinkerer]

Interaction between magnetic fields

"..There you can see the Galvanic Series of metals. Any time you have 2 dissimilar metals in contact with each other through an electrolyte, you have an electric potential.
In the instance of gold and zinc, for example, this potential is about 1,25 Volts. The amount of current flowing between the 2 metals will depend on the quality of the electrolyte and the surface area of each metal.

Any time you have some current flowing, you have ion migration and an electro magnetic field.

Plain facts out of the text book...."

* 2 dissimilar metal, one near (or in contact) other is one thing - metal alloy is quite another thing.
* ground battery phenomena is known to me,you dont need to explain much
*current flowing,ion migration.....em field? which type of current you are talking about here?


Yes, logically, we can bury battery in a wet soil and perform some tests...right?

A better test would be to bury a sheet of copper and a sheet of galvanized steel parallel in a sand box.
Before you bury, attach a wire lead on each plate
Then poor an electrolyte into the space between the 2 metal sheets.
For an electrolyte you can dissolve one pound of baking soda in 5 gallon of water.

You can now measure a voltage between the 2 wires. If you connect the 2 wires, you can measure a current.
The amplitude of the current or voltage is dependent upon the size and the distance of the dissimilar metal sheets.

This IS a single cell battery. In the case you used baking soda, it is an alkaline battery.

Now, if you do nothing else, the current will flow from the copper sheet ( Cathode ) to the zinc sheet (Anode) until the zinc has all migrated, ion after ion, to the copper sheet.

The electro magnetic field the surrounding your ground battery is proportional to the amount of current flowing.

Now, what will happen if you connect a car battery to the leads that reverses the current?

Or what happens if you apply an external magnetic field?

You know the magnetic fields do not cancel each other, they deflect and distort.

Now figure out the complex interaction between the earth's magnetic field, your ground battery magnetic field and the magnetic field produced by your metal detector......

I am really enjoying this discussion. It reminds me of my times as an under water welder when I used the seawater as a conductor instead of the ground cable, to weld with 550 Amps on the rod. Bit of a magnetic field there. Used to zap the fish and octopus for my lunch.

Tinkerer

[Fred]

R2 should be a capacitor...if you use shoes and it´s not raining... :-)

[ivconic]

I was just about to say same thing!
Ok...mostly in South America is hot, pretty hot, not a big issue - walkig bare feet arround. Yet...it presents variabile resistance not constant!? So...?
Take unimeter probes and pull those over your skin Esteban. You will see resistance is jumping randomly - not constant. How accurate could be your instrument with such unpredictable "element"?

[Qiaozhi]

Maybe this is more clear... or not?

So it looks like a better response can be obtained by detecting with bare feet, and not wearing rubber soles.

[Qiaozhi]

A quick test for halo effect could be to simply bury a single cell battery in a wet soil.
Fred.

Well ... it's a "battery in the ground" ... but is this the same as a "ground battery"?

[Esteban]

"..There you can see the Galvanic Series of metals. Any time you have 2 dissimilar metals in contact with each other through an electrolyte, you have an electric potential.
In the instance of gold and zinc, for example, this potential is about 1,25 Volts. The amount of current flowing between the 2 metals will depend on the quality of the electrolyte and the surface area of each metal.

Any time you have some current flowing, you have ion migration and an electro magnetic field.

Plain facts out of the text book...."

* 2 dissimilar metal, one near (or in contact) other is one thing - metal alloy is quite another thing.
* ground battery phenomena is known to me,you dont need to explain much
*current flowing,ion migration.....em field? which type of current you are talking about here?


Yes, logically, we can bury battery in a wet soil and perform some tests...right?

Maybe this is more clear... or not?

[ivconic]

"..There you can see the Galvanic Series of metals. Any time you have 2 dissimilar metals in contact with each other through an electrolyte, you have an electric potential.
In the instance of gold and zinc, for example, this potential is about 1,25 Volts. The amount of current flowing between the 2 metals will depend on the quality of the electrolyte and the surface area of each metal.

Any time you have some current flowing, you have ion migration and an electro magnetic field.

Plain facts out of the text book...."

* 2 dissimilar metal, one near (or in contact) other is one thing - metal alloy is quite another thing.
* ground battery phenomena is known to me,you dont need to explain much
*current flowing,ion migration.....em field? which type of current you are talking about here?


Yes, logically, we can bury battery in a wet soil and perform some tests...right?

[Fred]

A quick test for halo effect could be to simply bury a single cell battery in a wet soil.
Fred.

[Tinkerer]

Not ion detection

Tinkerer, are you trying to tell us that your new PI discriminator is capable of detecting IONS?
Do you know how small IONS are?
I have seen your mention of detecting a target of 0.005 grams of gold. That already sounds rather exaggerated.

In general people talk of grams or in the extreme penny weights, but to talk of a target of 5 miligrams of gold sounds like smoke and mirrors to me.

But even then. Do you understand how many times smaller are IONS compared to miligrams of gold?

I think you have a "SMOKE DETECTOR", BS walks!!!!!!!

Monolith

No, no,no, I don't detect ions, just electromagnetic fields produced by the migrating ions. Google for galvanic currents, you will find lots of information.

About the 5 milligram of gold, I admit I have no scale that goes so precise. I had to do it by calculation.

The reason for testing such a small sample is to test my theory that at very short delays, like 4us the predominant partial response from a target might be the skin effect eddy currents.
So far, the results seem to confirm that.

Maybe some of the technical experts from the forum would be so kind to suggest other testing procedures that could prove or disprove the reading of skin effect eddy currents.

Tinkerer

[Tinkerer]

Halo effect

Could this be a plot showing the halo effect? We are still studying this plot and site. Scroll down to the bottom of the page to see the plot. This is not a joke it was done using the Garrett XL500 and the Arc-Geo Logger. The two strongest points on the ring was hit by the guy using different dowsing equipment. I know those here don't use dowsing , so just look at the plot.

There is a metal target there, but the ring around it and where the rods directed is in line with my ring theory. Could this be a ring halo?

http://lrlman.com/Pages/LRL500/lrl500_mfd2.htm

Tim

Please tell us exactly what you find on that spot when you finally dig it up. I take note that you are carefully recording all parameters. The final report could give some very interesting information.

Tinkerer

[Tinkerer]

Heh..!
No electric fields arround burried metal for long time, Esteban. No such things. How can you measure something that dont exist?
I accept existance of so called "phenomena". I also can not explain what is all about. But also i am not that ignorant to accept some false theory about it.
"Strange sound" can be produced when highly flammable organic gas "meet" ordinary fresh air. Many times seen. In my country also people do beleive in theory whis claims; " ...when you see some weak,mum fire somewhere on some place, that is sure sign of burried treasure,under that spot...".
People evolved legend and sort of prejudice upon this natural phenomena, very oftenly seen. It is funny and sad at the same time to see groups of diggers how diging huge holes...tunnels on simillar places desperatelly searching for burried treasure.
We all are fully awared of mentioned phenomena.It exist for real.Nobody can deny that.
But also nobody gave sane explanation of it so far.Fact.

ivconic,

you might look up the following website: http://corrosion-doctors.org/index.htm

There you can see the Galvanic Series of metals. Any time you have 2 dissimilar metals in contact with each other through an electrolyte, you have an electric potential.
In the instance of gold and zinc, for example, this potential is about 1,25 Volts. The amount of current flowing between the 2 metals will depend on the quality of the electrolyte and the surface area of each metal.

Any time you have some current flowing, you have ion migration and an electro magnetic field.

Plain facts out of the text book.

In many places of the world where gold nuggets are found, the nuggets are covered by a dark brown "patina". This patina is manganese oxide. The manganese ions migrated to the gold nugget and stuck to it because of the electrical potential between the 2 metals.

Not too far from where I live, in one specific valley, the gold nuggets are covered by a green patina. The gold prospectors tell about the size of the "green gold nuggets". Could that be some cuprous oxide?

Now, our metal detectors are designed to be able to detect minute electro magnetic fields........

Tinkerer

[ivconic]

"...open base NPN or PNP transistor system.."

Can you define this?

[Esteban]

Ok, mmmm strange
I was talking about magnetic field,but taking both into account and beeping only when both are present may be a solution....regards,
Fred.

Yes, when I built pistol based on metal detector I detect also (I believe) magnetic component of the phenomenom.

Regards

Esteban