| 单词 | nyquist stability criterion |
| 释义 | > as lemmasNyquist (also Nyquist's) stability criterion a. A principle for determining the stability or instability of a feedback system according to whether the plot of a Nyquist diagram encircles the point (−1, 0) or not. More fully Nyquist (also Nyquist's) stability criterion. ΚΠ 1934 [see sense 1]. 1945 L. A. McColl Fund. Theory Servomechanisms v. 27 If this number is other than zero, the equation does have roots in the right-hand half-plane, and the system is unstable. This is Nyquist's criterion. 1952 Econometrica 20 269 A modification of the Nyquist stability criterion is provided for the investigation of stability of oscillation. 1984 SIAM Rev. 26 496 A notable example of the importance of complex function theory is the Nyquist criterion for the stability of feedback amplifiers. 1987 A. K. Walton Network Anal. & Pract. (BNC) x. 245 The critical condition regarding stability is embodied in Nyquist's criterion. < as lemmas |
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