Question: Consider a pH control problem that has the transfer function 8,(s): 4.12e-115 63.68 +1 A PI controller with kc = 4.35 and ti = 69

Consider a pH control problem that has the transfer function 8,(s): 4.12e-115 63.68 +1 A PI controller with kc = 4.35 and ti

Consider a pH control problem that has the transfer function 8,(s): 4.12e-115 63.68 +1 A PI controller with kc = 4.35 and ti = 69 yields the following Bode plot. Find the controller gain that will provide a gain margin of 2. 102 10' AR (gcgp) 10 10- 10-2 10 10 freq, rad/sec -100 -200 -300 -400 -500 10 2 10' 10 freq, rad/sec

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