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Recent content by Sambrose

  1. Sambrose

    Voltage Subtraction

    What is the best way to offset an analogue voltage. I have a voltage (from a measurement) that I want to "zero" so that 2 volts is read as 0V and anything above this is given as Vout=Vin-2V. Below 2V does not matter (prefer it all to be zero but if it just goes negative that is fine.
  2. Sambrose

    finding flow from head

    Just thought you might want some more data. 170m Head of pressure. Pipe diameter 500mm.
  3. Sambrose

    finding flow from head

    What methods are there for determining the flow from the change in pressure accross a multi stage centifugal pump? This data will be used for determining efficincy f the pump.
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