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Speed measurement

Discussion in 'Electronics Homework Help' started by Fenrir, Mar 1, 2014.

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  1. duke37


    Jan 9, 2011
    You should look at the requirement for accuracy. You may need many pulses per revolution.
    When travelling fast, you can count the number of pulses in a certain time, you will need a lot of pulses.
    When travelling slow, you will need to measure the time between pulses.
  2. Arouse1973

    Arouse1973 Adam

    Dec 18, 2013
    Ok I think this can be done as follows. You are going to need:

    A clock generator x 1
    A pulse generator x 1
    And associated timing components.

    AND gates
    4 bit counter x 2
    Quad flip flop x 2
    BCD to seven segment display driver x 2
    And current limiting resistors for the display.

    Good Luck
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