i want help plz

Discussion in 'General Electronics Chat' started by shetos13, Apr 26, 2011.

  1. shetos13

    Thread Starter New Member

    Dec 21, 2008
    5
    0
    plz
    i want 3 circuits
    1- to measure frequency of any AC signal
    2- to measure Phase Shift between 2 signals
    3- to measure RMS value of AC signal but without using galvanometer

    thanks for your time

    shetos
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    1. Frequency counter

    2. Complex Ratio Bridge, or a PLL.

    3. True RMS voltmeter (uses an IC to obtain the value).
     
  3. wmodavis

    Well-Known Member

    Oct 23, 2010
    737
    150
    For #2 I would use a dual channel oscilloscope.
     
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