Universal PI Micro

[aft_72005]

A good new micro pi project by BW is going at :
http://goldprospecting.invisionplus....g&showforum=71
worth a look.

Thank you.
Best regards.

[bugwhiskers]

Hi aft_72005,

Some more interesting posts.

http://goldprospecting.invisionplus....t=0&#entry4683

regards
bugwhiskers

[Aziz]

Hello friends,

bugwhiskers and some very competent people are working on a very interesting gold detector project at the moment. I had the chance to check some internals of this project and it is really one of the most promising PI project. Check it out from time to time. When the server is down, then try it next time.

Aziz

[Unregistered]

Doug and Bugwhiskers have a bunch of good info on their website. But its such a shame that they are so against anyone who disagrees with them. And are such Minelab haters. And if your have any thing to do with Johnathan Porter who does field testing for Minelab you are worthless to Doug the forum owner. Such a shame.

[unreg]

Not sure what to make of that site. Doug joined Carl-NC as a member without consulting him and also edited a member's posts and signature just because he didn't like him. The member and some others have now quit the forum because of this rather odd behavior.

[barry]

Don't waste your time getting involved with the politics unless that's what you are on these sites for. Put your time and energy into that MD you have sitting on your workbench awaiting your limited and valuable time, that you have been saying in your head you need some more spare time to work on it.

[Wirechief]

Hello friends,

bugwhiskers and some very competent people are working on a very interesting gold detector project at the moment. I had the chance to check some internals of this project and it is really one of the most promising PI project. Check it out from time to time. When the server is down, then try it next time.

Aziz

Hi Aziz, I want to ask you a question, have you written any textbooks before? I saw one with the name Aziz on it. I am just curious. Thank you very much.

John Tomlinson,CET
John's Detectors

[Derx]

Hi, bugwhiskers!

how to download firmware hex file?

[eneztr2005]

only one pcb and schema

my english not perfect

I want this project's one schema

complate one schema i will drawing isis (proteus) for simulate but not perfect electronic and i want you only 1 schema (all in 1)

i think understand me

[WM6]

HI BW.

Very promising project at beginning.

But what now? All stopped?

Always befits what has begun to complete also.

I support your creativity to get final solutions, so I am interesting to buy some kits or parts, whatever you offer (mono coil version only). Prefer to pay by PayPal.

Best wishess and best regards

WM6

[matabele]

Dead Thread

I am a latecomer to this project - but am interested in its progress. It appears to be difficult to access the goldprospectingoz links, without which this thread is dead.

Anyone know where to pick up with the project?

[greylourie]

Pick up with the project.

Hi Matabele.

If you have a look at post 267, you will see that Bugwhiskers did finish the UIPM. It is a usable platform for anyone to experiment with, and all the important links to get started are in that post.

It is like a motherboard that anyone can build, and add on to.

The links to GPOZ would probably be best accessed if you registered and became a member there.

Hope that helps.

[matabele]

Links

Thanks.

I have some ideas for a multichannel receiver of this type, which records the entire decay rather than just a few fixed channels.

Are there any other active projects of this nature?

[greylourie]

multi-channel recording entire decay ?

Thanks.

I have some ideas for a multichannel receiver of this type, which records the entire decay rather than just a few fixed channels.

Are there any other active projects of this nature?

Hi Matabele.

Would you care to elaborate ? When you say multi-channel receiver, my mind goes blank. I'm not really knowledgable about any of this.

BTW, have you ever been to Intabas Induna ?

[matabele]

Intabazinduna

Yep - live not too far from there, where the 'goway' birds cry.

PI metal detectors generally record 3 channels - each corresponding to an integral of the response over a certain period (channel) after different delays. One is generally a ground balance - the other two are on either side of the 'knee' in the response signal.

The problem is that ground and target responses are highly variable - the trick is to 'tune' the instrument to separate the target response from the ground signal in the presence of noise for the particular conditions encountered. This can not be done in the general case, as conditions vary tremendously (hence the 'salt', 'deep' etc. settings on many instruments.)

An instrument which records the entire decay curve could be customised by the user to match the specific conditions encountered - the whole response being compared to a ground response for the particular location and coil used.