Question: A control system for controlling the pressure in a closed chamber is shown in Figure P8.4. Sketch the Bode plot of the loop transfer function.

A control system for controlling the pressure in a closed chamber is shown in Figure P8.4. Sketch the Bode plot of the loop transfer function.

FIGURE P8.4 (a) Pressure controller. (b) Block diagram model. Desired pressure Controller

FIGURE P8.4 (a) Pressure controller. (b) Block diagram model. Desired pressure Controller Valve Infinite Pressure pressure source chamber Po Qo e(s) Controller Valve Process Pa(s) (1+0.5s) 0.02 (1 + 10s) (1+7s)(1 + 12s) 10 Po(s) s(1+3s) Measurement 20 (s+5s +12) (b)

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