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Use LabView to simulate 2 Sine Waves and then Filter Waves above 50Hz

  1. Feb 2, 2014 #1
    1. The problem statement, all variables and given/known data
    Create a VI that will: simulate two sine waves of different frequencies (run it
    for 20 and 12 0 Hz). Add the sine waves and plot the sum. Then use a filter to
    remove signals above 50 Hz, and plot
    the filtered res


    2. Relevant equations



    3. The attempt at a solution

    I have attached an image of what my program currently. I've managed to plot the 20Hz and 120Hz sine waves in a waveform graph, but I'm having difficulty with filtering out the signals with a frequency above 50Hz.

    Any suggestions and advice would be appreciated. Thank you.

    EDIT: I tried going into properties with the filter and setting the cutoff frequency at 50Hz, but the error message still shows.

    EDIT 2: Just realized that I how I wired the signal to the filtered signal didn't make sense. Have now fixed that, but the filtered signal doesn't look all that different from the unfiltered signal.
     

    Attached Files:

    Last edited: Feb 2, 2014
  2. jcsd
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