Pulse Induction Metal Detector

Discussion in 'General Electronics Chat' started by r_james14, Apr 28, 2010.

  1. r_james14

    Thread Starter New Member

    Apr 23, 2010
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    Hi
    I am trying to make a Pulse Induction Metal Detector however am unsure in the best approach in either using a little electronics and a micro controller or doing it without a micro controller, can anyone recommend an approach or a good information source.
    Thanks
    James
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    Can you tell us some more about how this type of metal detector works?
     
  3. hgmjr

    Moderator

    Jan 28, 2005
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  4. rjenkins

    AAC Fanatic!

    Nov 6, 2005
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    That 's the first time I have heard of that system, it is interesting.

    It does not look like it needs anything exotic component-wise, but you will definitely need a reasonable oscilloscope to monitor the 'transmit' current pulse waveform and decay time. If you can get a really clean, sharp cut-off the rest should be relatively easy.

    I'd start with a basic sample-and-hold amp for the receive side, on an adjustable delay.

    Once you get the basics going, you could always add a PIC or similar with an LCD to give a display & adjustable delay times for discrimination or 'echo' waveform graphic.
     
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