Consider the non unity feedback system in Figure E8.14, where the controller gain is K = 2. Sketch the Bode plot of the loop transfer function. Determine the phase of the loop transfer function when the magnitude 20 log|L(jω)| = 0 dB. Recall that the loop transfer function is L(s) = Gc(s)G(s)H(s).
Figure E8.14
Non unity feedback system with controller gain K.

Transcribed Image Text:

Controller, G(s) Process, G(s) Rts) Ms) 2 1.4s1 Sensor, H(s) 10 s 10