EXTRA_EXTRA_DEEP DISCRIMINATING DETECTOR

[maikl]

The main drawback of this design is the "masking" the iron over the gold.Discrimination against him is that he sees only non-ferrous metals in all metal mode. The second issue is the stability IB - PI detectors are sensitive to the effects of the country (especially with a large coil diameter 500mm). The main principle for the detection of the coin is how large coil is so deep detection (300mm coil detection coins at a depth of 300mm, etc). Large coil major influence of soil...

[Kev]

The main drawback of this design is the "masking" the iron over the gold. The second issue is the stability IB - PI detectors are sensitive to the effects of the country. Large coil major influence of soil...

Hi Maikl,
Tinkerer's approach may provide a solution to the first problem, and the second has already been addressed by Tinkerer. Cross coupling balance is achieved by controlling a FET conducting in the Ohmic region, this can easily be maintained by uC.
!st problem is the biggie and may need a radical combination of strategies.

Cheers
Kev.

[Kev]

Hi Kev,

I only do what is fun for me to do. I have worked very hard for 55 years to get where I am now. The little time I have left, I want to enjoy.

I do enjoy solving problems, facing challenges. To succeed where others have failed makes me happy.

All the best

Tinkerer

Gid'day Tinkerer,
You are a wise and humble man. I too know that money does not buy happiness. I enjoy hunting for gold nuggets not for the money but the thrill, and I don't need to kill them at the end of the hunt. I wish I had more time to do this though, I love the back country wilderness and hate the city and this cube I spend 40 hours a week inhabiting. To have a garage industry where I could pay the mortgage by working 2 or 3 days a week is my dream.

I have some ideas and some have been seeded from yours and many other contributors here. I need to give some back. I wish I'd taken more notice while you were developing the V1 so that I could have been more involved.

Please remain autonomous and continue on as you have done so, then all can learn from you. As long as this forum remains your work will too, a testament to your ingenuity and determination.

Best wishes
Kev.

[Tinkerer]

The main drawback of this design is the "masking" the iron over the gold.Discrimination against him is that he sees only non-ferrous metals in all metal mode. The second issue is the stability IB - PI detectors are sensitive to the effects of the country (especially with a large coil diameter 500mm). The main principle for the detection of the coin is how large coil is so deep detection (300mm coil detection coins at a depth of 300mm, etc). Large coil major influence of soil...

Hi maikl,

The Tinkerers_IB-PI does see the iron and does see the gold. But you can chose to reduce the response of the iron.

The iron response is negative and the gold response is positive.

Tinkerer

[maikl]

The Tinkerers_IB-PI : the iron response is negative and the gold response is positive. Gold near the iron is a negative response (masking). Is there a video of how to Tinkerers_IB-PI?

[Tinkerer]

The Tinkerers_IB-PI : the iron response is negative and the gold response is positive. Gold near the iron is a negative response (masking). Is there a video of how to Tinkerers_IB-PI?

maikl,

no, iron does not mask the gold signal, because to sampling is done separately. 3 samples are taken, one for FE, one for Gold, one for Ground Balance.

If you are interested, we can further develop the Tinkerers_V1 together. It has many very interesting features, but there was very little interest shown for development, because of it's complexity and fundamental differences to a standard PI.

It is not for beginners, but it does have great possibilities.

Tinkerer

[maikl]

maikl,

no, iron does not mask the gold signal, because to sampling is done separately. 3 samples are taken, one for FE, one for Gold, one for Ground Balance.

If you are interested, we can further develop the Tinkerers_V1 together. It has many very interesting features, but there was very little interest shown for development, because of it's complexity and fundamental differences to a standard PI.

It is not for beginners, but it does have great possibilities.

Tinkerer

I unfortunately am not proficient enough to join you in developing Tinkerers_V1. But I think the further development eventually got clean IB metal detector. Would no longer be IB-PI than just IB. My opinion is that the multi-pulse technology offers much more, but unfortunately there is nowhere for the public scheme.

[charleskerr]

Development

Hi Tinkerer

If you need any help with development, I may be able to help with the micro controller side as developing projects with pic's is a buisness/hobby of mine.

It would be great putting a new design/technology out there

Regards

Charles.

[Tinkerer]

Hi Tinkerer

If you need any help with development, I may be able to help with the micro controller side as developing projects with pic's is a buisness/hobby of mine.

It would be great putting a new design/technology out there

Regards

Charles.

Hi Charles,

I am always busy developing new technology and methods. This is may hobby. However, the MCU side is one of my weak spots. I would be glad to accept help with the code.

All the best

Tinkerer

[Sean_Goddard]

Tinkerer, the answer to your problem is simple; LICENSE your finished designs to people such as Silverdog or anyone else and take a %age of the profits which they send to you via direct transfer or Paypal.

Do NOT let your "government" steal your hard work so that they can ride around in big expensive cars while everyone else must walk, that is not government, that is tyranny.

[waltr]

Code work can easily be shared among developers through 'get hub'.
I have been involved in open source software where developers were spread all over the world.

'get hub' can also be setup to restrict who can access code and who can make changes if full open source is not desired.

Since Code is not easy but is also key to more advanced detector projects then sharing development is the way to go.

[Tinkerer]

Tinkerer, the answer to your problem is simple; LICENSE your finished designs to people such as Silverdog or anyone else and take a %age of the profits which they send to you via direct transfer or Paypal.

Do NOT let your "government" steal your hard work so that they can ride around in big expensive cars while everyone else must walk, that is not government, that is tyranny.

Hi Sean,
are you aware that you are answering on a post from 2011?
Anyway, it might be interesting to dig up the old stuff.(pun intended) I was always playing with all sorts of ideas and still am.
I lot has changed though. We now have the possibility to have our prototype boards made in China at very low prices. (pcbway) and order parts from (aliexpress).
Although I am now 76 years old, I prefer now to use SMD parts. A few simple tools and tricks make it really easy. Maybe we should talk about that a bit?

tinkerer

[Sean_Goddard]

Sure! Anything you need, PM me and I'll sort it out for you.

If you want to discuss in private, drop me a PM (again).

Did you see my post on the individual processing of the PI sampler outputs?

[toolnuts]

Tinkerer,

I think you would be better served by using the arduino platform rather the PIC. It was developed to
be simple enough for kids to use. It has simple hardware and software and is inexpensive.

Are you projects aimed at finding gold or just general detection?

I am a retired engineer, and am trying to learn the ins and outs of metal detecting.
I would like to develop and build one of my own.

Best Regards,

Paul

[kt315]

Are you projects aimed at finding gold
---
gold does the people crazy.