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How do I work out when the bag is full?

Discussion in 'Beginner Electronics' started by Himszy, Mar 26, 2005.

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  1. Himszy

    Himszy Guest


    I need to work out how full a bag is. I don't need exact measurements just
    1/2 full 1/5 full ful empty etc. The bag is 2000cl and has water on the
    outside with air on the inside.

    What form of sensor do I need?

    Thanks Michael
  2. JeffM

    JeffM Guest

    I need to work out how full a bag is
    Measure the bouyant force.
    A pulley at the bottom and a spring scale out of the water.
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