Quote:
Originally Posted by FrancoItaly
Hi J_P
I appreciate your explanation of E static fields, You know that I think that the lines of force are curved in south/north direction and a voltage change over the target it's detectable also 10 meter away because the lines act like a taut wire.
At present day I have not a working lrl, I can detect almost surely gold and silver targets buried a few months ago but also Sky and horizon effects and this complicates everything. I have noticed that only an high impedance E field amplifier is too sensible to every change like trees, walls and other things and practically useless. The magnetic receiver with a not shielded TR coil detects only targets and Sky and horizon effects but no trees and walls and then I think that the phenomenon it is connected not only to static fields but also another thing, perhaps the shield is like in a metal detector where it reduces the ground capacity and in our case we need some dielectric effect. My next experiment will be a partial shield or a total shield not grounded.
Best regards and happy new year
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Hi Franco,
The electric field variations you are talking about begin as a chemical change in the soil, not magnetic. Any magnetic effects are a direct result of the electric consequences of chemical corrosion and ion exchange between metal and acids in the ground. There are also secondary effects related to the earth's natural electric and magnetic fields which may be much easier to detect than the simple electrochemical exchange of ions under the ground.
We know the earth's electric field is curved only to follow the surface contour of the earth, which includes hills and valleys and objects such as trees or man-made structures.
The electric field is the same as you would find if you built a capacitor from a sphere located inside a much larger sphere.
The electric field is is what you will find in the air space between the two spheres.
This is the same as we see between the sphere of the earth surface and the larger sphere of the ionosphere.
We know there are small distortions at the surface, but in general, we have a spherical shaped electric field gradient.
When we observe this field from standing on the surface of the earth, it appears to be a vertical field which is uniform to all horizons unless there is a tree or building to distort it.
It appears this way to an observer for the same reason that the earth appears to be flat. Unless we move our frame of reference to a higher altitude, it is difficult to observe the field and the earth are actually spherical.
But what we can observe from the surface of the earth are the small variations in the field that we can find from trees, buildings, and other things that cause an anomaly to the uniform field.
The magnetic field is a different kind of field.
It is curved to follow the lines of magnetic flux from the north pole to the south.
But the magnetic field is not as uniform and as ordered as we expect it to be from the standard formulas.
The magnetic field is generated from the central and secondary core of the earth where there are large masses of molten and plastic iron rotating to create a magnetic field. But the outer crust of the earth also has a smaller influence to distort the normal lines of flux that we expect to find traveling directly between the north and south magnetic poles.
We see that most locations on the earth, the compass does not point directly to the north pole.
The direction of the compass deviates by various amounts at every location on the earth. We call this deviation the declination, which is an "error" in the compass from the actual magnetic north.
Unusual rock formations and conductive soils which carry natural currents cause the magnetic field to shift so it is not following the expected straight line between the poles.
We also see there is a second deviation called inclination.
Inclination is a vertical deviation from horizontal. We can find the direction of the magnetic field can be anywhere between horizontal to perfectly vertical at the north or south pole.
We expect the inclination to be horizontal at the equator, and vertical at the poles. But we do not expect the inclination to deviate from horizontal at the equator....
yet it does... because of variations in the composition of the earth's crust.
The same is true for the inclination that we would expect to find at any other location on the earth.
A third error we can measure is the magnetic field strength. The strength of the earth's magnetic field deviates a lot from what we could calculate for any location on earth. We can see it will easily become double when you walk 100 meters distance.
For various location on the earth, we find the total strength of the magnetic field to be between 22,000 nT and 67,000 nT. This means we will see up to 3 times stronger magnetic field strength in some locations.
All of these errors and deviations are caused by variations in the composition of the earth's crust.
At the time when the earth was formed, some parts of the planet captured more meteors than the others, which caused some locations to have more concentrations of magnetic flux conductors than other locations. Meteors are only partially responsible for these deviations.
The rock structures under the ground have a large influence on the magnetic field shape. We see that some rocks are more or less conductive, and there are underground water channels which also conduct electricity.
The telluric currents will follow certain preferred paths through underground rock and soil strata, which ultimately influence the shape of the earth magnetic field. The end result is the composition of the earth's crust is causing most of the vector deviations of the magnetic field.
But there is also a time-dependent influence which comes from the solar wind, and changes throughout the day on a 24 hour cycle. Between the solar wind and thunderstorms, there are about 2000 amps of electricity leaking through the atmosphere.
This current also moves through the telluric currents in waves which follow the sun.
If you measure, you will see there are times when you will see stronger and weaker telluric currents, which not surprisingly seem to peak at about the same time every day.
"I have noticed that only an high impedance E field amplifier is too sensible to every change like trees, walls and other things and practically useless".
This is why I say I don't expect you will find much success unless you first filter out the higher frequencies from your electric field detector above 2-3 Hz.
But this does not solve the problem of making an electric field detector detect buried metal.
You also need to learn what signals can be found at a location where there is buried metal, and add some more circuitry that will detect these signals.
With all the misinformation we can read here about "the phenomenon" I find it highly unlikely that anyone could learn what signals are detectable unless they did their own research to find these signals.
The way this relates to the box you make for your electronic detector will depend on exactly what kind of signal you have designed to detect.
The electronics inside your box must detect a signal that the box will not inhibit or cause interference to the electronics.
Best wishes,
J_P