阿摩線上測驗
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阿摩線上測驗
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5.Consider a control system with the following loop transfer function
-∞≤K≤∞
(a) A Nyquist path is shown in Fig. 1.
Sketch the Nyquist plot of this system for K ＞0 in accordance with fig. 1, and indicate clearly I. the
intersection(s) of the Nyquist plot with real and imaginary axes if any II. each mapping of point
a:(0+jω,ω→∞⁺),6:(0+jω,ω→0⁺),c:(
,φ→0⁺)and d:(0-jω,ω→∞⁺) in your
plot.