Electrical conductivity via one wire.

Discussion in 'The Projects Forum' started by makrameniso, Jul 4, 2016.

  1. makrameniso

    Thread Starter New Member

    Jul 4, 2016
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    I would like to pay your attention, that i have to measure the liquid electrical conductivity via one wire.
    If you can resolve this, please reply to me.
    Please how can i manage this with Shooting a laser in, measure light degradation,or have a magnetic float and measure inductive coupling..

    Thank you .
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    You can't measure anything with one wire.
     
  3. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    Measure current flow.

    This will correlate to the resistance or conductivity of the liquid.

    You supply 10 volts and measure .000001 amp of current. Using ohms law what is the resistance?
     
  4. DGElder

    Member

    Apr 3, 2016
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    85
    Assuming the probe doesn't have a battery inside or a mini chem lab and assuming no other equipment is used beyond said wire, probe and circuit. Then use the probe as a monopole antennae and measure how the supplied power to the probe varies with changing liquid conductivity..
     
  5. DickCappels

    Moderator

    Aug 21, 2008
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    Are you able to have a battery or other power source at the tank?
     
  6. BR-549

    Well-Known Member

    Sep 22, 2013
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    It would be dangerous to suggest a solution, without know the liquid and the environment.

    Is it water, gasoline or H2O2?
     
  7. shortbus

    AAC Fanatic!

    Sep 30, 2009
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    Sure you can. Cut a wire to a 1 meter length and measure the distance of something, one meter at a time.
     
    Sinus23, #12 and AnalogKid like this.
  8. BR-549

    Well-Known Member

    Sep 22, 2013
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    There usually is a spare conductor. Ground.
     
  9. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    Sure you can. Pump some RF into it, and the SWR will change as it goes from immersed to free space.

    ak
     
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