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How timedelay behaves for nyquist plot ?

Discussion in 'Homework Help' started by shameem, Jun 19, 2015.

  1. shameem

    shameem New Member

    Joined:
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    I had generated the nyquist plot for open loop 2exp^(-10s) it gave me a circle for radius 2 with center zero. But when make a open loop function nyquist plot the plot change and I dont understand why or how.

    I am uploading graph for close loop (with 1 feedback) nyquist plot for step response. Please let me know how it can be plotted.
     

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