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Dynamic Analysis by Transient Response
The Process Control System as an InformationTransmitting
The TransientResponse View of What Makes Control
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A.I.E.E. Transactions Appendix Automatic Control Bode plot calculated Chapter compute constant control action control loop Control Modes controller output corner frequency cycling damping factor db curve db value dead decibels Description or Symbol deviation ratio curve disturbance signals Dynamic Analysis effect estimate first-order lag Fractionating Column frequency-response curves gain margin graphical identify input signal line-out magnitude ratio measured variable method natural frequency Nichols chart nonlinearities offset open-loop operating output signal overshoot peak height phase angle phase curve phase lag phase margin pressure control system process blocks process control system proportional action proportional band proportional control radians per minute range rate action Reference number relation reset action response curve second-order selected set point set-point change shown in Figure signal-size Simplified Description sine wave specific steady-state gain steam Step step-change Table temperature control transient response transient-response curve unit change valve opening valve position