Minelab 8000

[Aziz]

Hi all,

there are obviously some restrictions and limitations in the coil geometry definition. Dilate and contract will not work if the coil has concave and convex structure at the same time.
Best example is the omega coil shown below.


At the bottom part, the connections from the inner to the outher coil are wrong.
This will lead to little inaccuracy in the numeric calculations.

But there is a work-around possible. Define each path individually and build the bundle.

[Aziz]

Anyway,

we could continue with the coil comparisons at this current coil software stage. The coil geometry description language gives us still enough possibilities to work with.
I have maybe implemented 60-70 % of the features till now. And bug fixing and fine tuning could be required too.

So what's next? Proof of the geometric-mean-rule?

Aziz

[Aziz]

Have a look.
A completely irregular coil bundle.
I am testing the coil software.



Nuclear fusion coil should be possible to model.

[Aziz]

Hi all,

I had a good idea today and have implemented it already.

A single coil geometry definition file can contain multiple definitions now. RX coils, TX coils, Fusion coils, Toilet coils, etc...
All realized with goto and label command.

//start
//..
//commands...

goto DoRX // goto DoRX label

//...all command not taken into account

DoRX: // label definition
// Make the RX coil now
//commands..
end

One can select the coil model name (label) in the dialog box of the coil settings. So I can select from one definition file each coil individually.

I was really fed up with lot's of external coil definition files...

[peterr3]

All of this is very interesting, but the fact is that the 8000 with its 18 coil is unusable over a lot of lateritic vrm soil in Western Australia and some Victorian soils as well. Even when run at its lowest sensitivity. Throw in some conductive soil components and the 8000 becomes an audio nightmare! These are soils the the7000 run in locate patch mode will cope with as will the gpx. Also, I am not aware of any 8000 uses finding a deep nugget that the 7000 or gpx could not detect. Most of the outrageous 8000 depth claims are due to hopeless pinpointing as the nugget was in the hole side wall and falls to the bottom the hole when it widened. Those with a 7000 and using big X CC coils will see not reason to acquire an 8000. Also, how does one detect with the 8000 when you can't carry a pick, mobile phone, pin pointer, gps or a PLB on your person?IMO the 8000 is overhyped and overpriced and has been released with the wrong coil for very severe soil types!

[ivconic]

Your remarks seem very logical to me.
Big companies run out of ideas and just recycle the same thing all over again.

[Aziz]

..
Most of the outrageous 8000 depth claims are due to hopeless pinpointing as the nugget was in the hole side wall and falls to the bottom the hole when it widened. Those with a 7000 and using big X CC coils will see not reason to acquire an 8000. Also, how does one detect with the 8000 when you can't carry a pick, mobile phone, pin pointer, gps or a PLB on your person?IMO the 8000 is overhyped and overpriced and has been released with the wrong coil for very severe soil types!

Yep, this seems to be plausible. Very plausible.

GPZ8000 is a good machine.
All the gold prospectors have to dig big and deep holes which makes them busy for a while.
And the GPZ8000 seems to be very very noisy. A lot of true gold signals won't even be digged out.
I you don't gonna get mad by the sound it is making.
After a while, you lose the focus to the real target signals.
GPZ8000 is a good machine.
It keeps big deep gold in the ground.