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PH meter schematic

Discussion in 'Electronic Design' started by Myauk, Nov 13, 2006.

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  1. Myauk

    Myauk Guest

    I need a PH meter schematic to construct one for my father.

    Can anybody help me?
     
  2. This is rather trivial. You need to measure the 700mV
    or so with a high impedance.

    Rene
     
  3. Guest

  4. Mike Monett

    Mike Monett Guest

    I seem to recall a cheap homemade ph sensor mentioned in some newsgroup.
    Not as accurate as commercial units, but maybe good enough for non-critical
    applications.

    Do you have any idea how to do that?

    Regards,

    Mike Monett

    Antiviral, Antibacterial Silver Solution:
    http://silversol.freewebpage.org/index.htm
    SPICE Analysis of Crystal Oscillators:
    http://silversol.freewebpage.org/spice/xtal/clapp.htm
    Noise-Rejecting Wideband Sampler:
    http://www3.sympatico.ca/add.automation/sampler/intro.htm
     
  5. Amateur Scientist column in Scientific American?
     
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