7a. Define the following terms:
i) Gain margin
ii) Phase margin
iii) Gain crossover point
iv) Phase crossover point
b) A servomechanism has an open-loop transfer function of 10.
Draw the Bode plot and determine the phase and gain margins.
A network having the transfer function (1+0.2s)/(1+0.02s) is now introduced in tandem.
Determine the new gain and phase margins.
Comment upon the improvement in the system caused by the network.