PH meter schematic

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

  1. Myauk

    Myauk Guest

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

    Can anybody help me?
     
    Myauk, Nov 13, 2006
    #1
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  2. Myauk wrote:
    > I need a PH meter schematic to construct one for my father.
    >
    > Can anybody help me?


    This is rather trivial. You need to measure the 700mV
    or so with a high impedance.

    Rene
    --
    Ing.Buero R.Tschaggelar - http://www.ibrtses.com
    & commercial newsgroups - http://www.talkto.net
     
    Rene Tschaggelar, Nov 13, 2006
    #2
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  3. On 13 Nov 2006 01:09:52 -0800, in sci.electronics.design "Myauk"
    <> wrote:

    >I need a PH meter schematic to construct one for my father.
    >
    >Can anybody help me?

    http://en.wikipedia.org/wiki/PH_meter


    martin
     
    martin griffith, Nov 13, 2006
    #3
  4. Myauk

    Guest

    , Nov 13, 2006
    #4
  5. Myauk

    Mike Monett Guest

    wrote:

    >
    > http://www.ph-meter.info/pH-meter-construction
    >
    > Borek
    > --
    > http://www.chembuddy.com
    > http://www.ph-meter.info


    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
     
    Mike Monett, Nov 24, 2006
    #5
  6. "Mike Monett" <> wrote in message
    news:Xns98853F93F78F9Noemailadr@208.49.80.251...

    > 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?


    Amateur Scientist column in Scientific American?
     
    Homer J Simpson, Nov 24, 2006
    #6
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