Metal detector experiments.

[M.D. prototypes]

.............. I suspect if you were to place the coil on top of a metal drain cover, you wouldn't be able to detect the moving coin.

An interesting experiment. We've never tried it because it seemed to us to be impossible. We don't have a metal drain cover but we have a 90 x 60 cm (35"x 24") triple central heating radiator.

We have tried it out and we are very surprised with the results of this extreme overload experiment.

[M.D. prototypes]

The detection depth difference between different positions of the targets 2

[M.D. prototypes]

Dynamic range experiment 5

Dynamic range experiment 5

[jaccob]

beautiful detector .Work with PIC or it is a pure analog.When does you share schematic.I want try this project
Sorry for my bad english
Best regards

[bernte_one]

i hope that Mr. M.D. prototypes will give us somewhere in future all files to build this detector
but thats just a hope

[Koala]

if it work like this https://www.youtube.com/watch?v=12YLaiUnEhc I might make it but so far the videos show nothing new compared to other projects on here. The problem with large iron is only there if the coil is in motion. I rested my IDX against a radiator and placed a large rusty spanner diagonal across the coil and it still works fine.

Testing a detector on a bench is very difficult to get meaningful results. I have just made a coil that works fine inside works fine on my flat lawn even over wet grass but fails on normal pasture fields because the surface is not as flat

[M.D. prototypes]

@ jaccob

This detector works with a pic.

[M.D. prototypes]

@ bernte_one

Why do you call me Mr.?
In this life you should never give up.

[M.D. prototypes]

The detection depth difference between different positions of the targets - 1

[bernte_one]

hello
call you mr. because i see the Hand in the Video and it ist the Hand of an older man
thats a Kind of respect if i say mr.

most of the younger People tend to call other Person "hey bro whats up"

can call you also by your real name

[M.D. prototypes]

hello
call you mr. because i see the Hand in the Video and it ist the Hand of an older man
thats a Kind of respect if i say mr.

most of the younger People tend to call other Person "hey bro whats up"

can call you also by your real name

Thanks for your honest answer.
You can call me "hey bro whats up" because the hands of the older men are not mine.

[M.D. prototypes]

Highly mineralized.

[mickstv]

Highly mineralized.

So, what's in the plastic container ? broken tiles, pottery and bricks ?

[M.D. prototypes]

Only, broken pottery.

It is important to adjust precisely the ground balance because of different and uneven surfaces.

[mickstv]

Only, broken pottery.

It is important to adjust precisely the ground balance because of different and uneven surfaces.

Bricks and pottery are only mildly mineralized, true mineralized ground is highly mineralized and highly magnetic. Picture below is of a small sample of highly mineralized ground I use to test my PI circuits.