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water depth measurement

Discussion in 'Microcontrollers, Programming and IoT' started by 211ec2074, Jan 22, 2013.

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  1. 211ec2074

    211ec2074

    1
    0
    Jan 22, 2013
    hii,
    i want to measure the depth of water and display the value at every minute.
    please help asap...
    thank you..
     
  2. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    How much range? What type of liquid? How accurate? The more details the better...

    A simple float works well and is time proven just like they use for gas tanks in cars... You can attach the float to a lever that rides along a linear digital scale and you can get damn accurate readings to the 100oth of an inch easily... You can also use an ultrasonic distance module and bounce it off the top of the water from a fixed height... Or there are fancy proprietary sensors used in the food and other industries to measure liquid levels, lots of options...
     
  3. donkey

    donkey

    1,286
    56
    Feb 26, 2011
    you could use pressure if its sealed, a float etc... but no matter what we need to know dimensions of tank or else all you will get is empty,low, full type things maybe if you are lucky a percentage
     
  4. sirch

    sirch

    109
    1
    Dec 6, 2012
    Ultrasonic distance measurement often used in industrial processes
     
  5. donkey

    donkey

    1,286
    56
    Feb 26, 2011
    there are a few possibilities.if its just depth then the easiest is ultrasonic.
     
  6. poor mystic

    poor mystic

    1,061
    30
    Apr 8, 2011
    :)
    Others' experience is that the ultrasonic transducer needs to be on the bottom of the tank or pool, so that the reflection is from the surface. Anyway this worked well at Speights brewery in Dunedin with beer as the liquid of interest.
    (This interest I mentioned is quite apparent in some "Daves",)
     
  7. davenn

    davenn Moderator

    13,439
    1,808
    Sep 5, 2009
    hahaha

    I used to look after the PA paging system throughout that place many moons ago
    That takes the memory back a bit

    good to see ya online PM :)

    Dave
     
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