In the industrial control system, which one of the following methods is most commonly used in designing a system for meeting performance specifications?

PID controllers are implemented using Ziegler -- Nichols method after determining the system transfer function

The transfer function is first determined and then either a lead compensation or lag compensation is implemented

The transfer function is first determined and PID controllers are implemented by mathematically determining PID constants

PID controllers are implemented without the knowledge of the system parameters using Ziegler— Nichols method

In the industrial control system, which one of the following methods i

1.	In the industrial control system, which one of the following methods is most commonly used in designing a system for meeting performance specifications?
A.	The transfer function is first determined and then either a lead compensation or lag compensation is implemented
B.	The transfer function is first determined and PID controllers are implemented by mathematically determining PID constants
C.	PID controllers are implemented without the knowledge of the system parameters using Ziegler— Nichols method
D.	PID controllers are implemented using Ziegler -- Nichols method after determining the system transfer function
Answer» D. PID controllers are implemented using Ziegler -- Nichols method after determining the system transfer function

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In the industrial control system, which one of the following methods is most commonly used in designing a system for meeting performance specifications?

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