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  • Ok Paul go for it!

    Ok Paul go for it
    Paul let us for the moment accept that you are an EM genius and that Eric, Reg and Dave are totally wrong in their design philosophy and implementation of their Pi platforms.
    Let me put you to the test with the following hypothetical scenario. I want you to design me a Pi detector for gold prospecting. The criteria you must meet are as follows:
    1. 20-100% more depth than a mine lab machine on nuggets from 1gram- hundreds of ounces over all types of ground.
    2. The detector must not give any false signals due to ground minerals, it must only respond to metallic targets.
    3. The detector must be highly immune to any forms of EM interference man made or environmental
    4. The detector must be capable of discriminating with 100% accuracy at full Pi depth ferrous/non ferrous or preferably respond only to gold.
    5. The platform must be one man portable, user friendly and safe.
    6. It must comply with current EM emission standards.
    7. You can use either digital or analogue circuits or a combination of both for the platform and any signal processing algorithms or methods you deem appropriate.
    8. It must be capable of using a wide range of coil types from small to very large preferably of a monoloop or similar type. The coils should be capable of being used by one person.
    9. The rechargeable power pack should give at least six hours detecting and not be excessively heavy or bulky.
    10. Cost of the platform is not a consideration if the above objectives are realized.
    11. If a Pi platform will not achieve the above objectives then you are free to design, develop and implement any other technology that will satisfy the above.

    Ok Paul here is a chance to make a name for yourself, go for it! Let us see if you really have anything useful to contribute on the technical and electronic side that we can subject to critical analysis or are you just a big bag of wind?
    ElectroNovice

  • #2
    Originally posted by ElectroNovice
    I want you to design me a Pi detector for gold prospecting. The criteria you must meet are as follows:
    You have some serious issues. Personally you would be the last person here I'd want converse with.

    Paul

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    • #3
      If you decide to build a brick wall around your garden consider this handy tip.

      Put a fillet of cement on top of the wall and stick bits of broken glass in the cement. This is a cheap and handy way to stop children from next door getting in to your garden to get their ball back.

      Delbert

      Comment


      • #4
        Paul,

        Would you be willing to post your PI design? Or, at least as far as you've gotten with it. I can't say that anyone would be willing to help with any questions you might have, but at least it might show some of us where we've gone wrong.

        - Carl

        Comment


        • #5
          Originally posted by Carl-NC
          Paul,

          Would you be willing to post your PI design? Or, at least as far as you've gotten with it. I can't say that anyone would be willing to help with any questions you might have, but at least it might show some of us where we've gone wrong.

          - Carl
          Thanks Carl for this.Dont think you will get anything from Paul as I suspect he works for ML. He is only on this forum to try and destroy the reputation of Eric,Reg and Dave either for his own purposes of under corporate direction.
          ElectroNovice

          Comment


          • #6
            Carl, I was only seeking additionally field data at this forum, not technical assistance. A few people provided some field data, which confirmed what I already knew.

            I'd like to first build my design, putt a round a little and see just how much deep gold's in CA, AZ, and NV. According to preliminary tests, it should detect ~ 3 to 4 times deeper than ML GP in heavy mineralized ground.

            I get the impression some people here believe there's going to be some magical distance where next years wave of new detectors are going to discover big "deep gold." Are you also a believer in this theory? Personally I don't think it will be that much better, except try to imagine digging 5 to 10 feet down! Remember the days when detectors were good for about 8 inches and then came ML's PI that punched 2 to 3 feet down? I know several full-time nugget shooters who detected back then who are still just as poor as ever.

            So I'll putt around, find a few nuggets here and there, and unless I strike it rich, (not likely) I'll be back to post the detailed designs.

            What about selling the device. If it were that simple, then perhaps, but if they want to be legal then it requires a lot of money, time, and work. All that, and for what? You think the metal detecting industry is huge? Garage designers are playing Russian roulette if they don't get their units FCC approved! These pulses contain wide band frequencies. Take a look at a 10KHz pulse and you'll see appreciable frequencies in the MHz range. A pulse contains a very wideband of frequencies. So that's the voltage. Now enter a 2-foot coil in an antenna simulation program and you will discover that it generates a far field. What's really bad is that it's not even a single frequency. Believe me, the last thing a garage designer wants is to get caught. The U.S. government is busy, but eventually they will get around to it and then the nightmare begins. The legal system is complex, but a good place to start is with FCC Part 15 regulatory standards. It does not matter if the detector is legal, which I doubt some of these new ones are. They need to get FCC approved, period.

            Paul

            Comment


            • #7
              "I'd like to first build my design, putt a round a little and see just how much deep gold's in CA, AZ, and NV. According to preliminary tests, it should detect ~ 3 to 4 times deeper than ML GP in heavy mineralized ground."

              Talk about making outrageous Claims! I think Paul must have discovered some new laws of Physics! Is he really saying that he can defeat the 1/r6 law? Sounds very much like an Oz company who told potential investors that their detector broke the laws of physics!
              ElectroNovice

              Comment


              • #8
                Originally posted by ElectroNovice
                I think Paul must have discovered some new laws of Physics! Is he really saying that he can defeat the 1/r6 law?
                Breaking the 1/r^6 law??? That's an odd statement.

                Anyhow, so take a 16" coil. Say the nuggets 4" deep. Now compare that to an identical nugget that's 8" deep. Do you think the signal decays at 1/r^6 Electro? I understand what you're saying, but disagree that it's a fixed law. Lets say the difference between 2 feet and 7 feet approaches 1/r^6. That would be 1838. You think a PI would be breaking some law if it was 1838 times better?

                Paul

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