HELP WITH LAB REPORT

Discussion in 'Homework Help' started by Fairydust07, Apr 15, 2009.

  1. Fairydust07

    Thread Starter New Member

    Apr 15, 2009
    2
    0
    I need to use an operational amplifier as a comparator to indicate if the volume of mauby in a clear glass bottle is below a certain level. I must use a double potential divider arrangement (a bridge) with a LDR as the input transducer and a LED as the output transducer. The potential dividers must be connected across the positive of one power supply. LED in forward bias. LDR of resistance 3MΩ in dark and 3kΩ in light,LED with protective resistor in series with it,3 fixed equal resistors chosen from a set of resistors ranging from 100Ω to 5MΩ,741N op amp chip, 2 15v stabilised power supplies, glass bottle 3/4 filled with mauby, identical glass bottle 1/2 filled with mauby, small laser. What to do??....???
     
  2. wollybyte

    Member

    Apr 5, 2009
    15
    0
    is it an assignment?
    do you want to know how to connect the parts?
     
  3. Fairydust07

    Thread Starter New Member

    Apr 15, 2009
    2
    0
    yeah..n probably explain how it'll work
     
  4. wollybyte

    Member

    Apr 5, 2009
    15
    0
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