In stability analysis, what does a Nyquist plot help determine?

In stability analysis, what does a Nyquist plot help determine?

Step 1: Understand that a Nyquist plot is a graphical representation of a system's frequency response.
Step 2: Know that the plot shows how the system responds to different frequencies of input signals.
Step 3: Identify that the main purpose of the Nyquist plot is to analyze the stability of the system.
Step 4: Learn that stability means the system will behave predictably and not oscillate uncontrollably.
Step 5: Recognize that the Nyquist plot helps find two important values: gain margin and phase margin.
Step 6: Gain margin tells us how much we can increase the system's gain before it becomes unstable.
Step 7: Phase margin indicates how much the phase can change before the system becomes unstable.
Step 8: Conclude that by examining these margins on the Nyquist plot, we can determine if the system is stable.

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