The Nyquist Stability Criterion is a graphical method used to determine the stability of a feedback control system by analyzing its frequency response. It involves plotting the Nyquist plot, which represents the complex values of the system's transfer function as the frequency varies, and assessing how many times it encircles a critical point in the complex plane. This criterion helps in understanding how systems react to delays and impacts their overall performance, especially in applications involving haptic interfaces and telerobotics.
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