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NYQUIST STABILITY CRITERION
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The Nyquist Stability Criterion has the objective of analyzing the BIBO-stability of Linear Time-Invariant Continuous Time Systems with feedback connections. If you want to review the definition of BIBO-stability go to Learning Object Stability Concepts Used in the Study o LTIS.
It is a graphical method and is applied to systems with feedback with no need of computing the closed-loop transfer function. It is only necessary to know the open loop transfer function.
Learn about Harry Nyquist (1889-1976), an American engineer, by accessing the article on his life and contributions. The article is available from the IEEE – Institute of Electrical and Electronics Engineers website.
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The simulations of the Nyquist Stability Criterion are performed online and in real time using Scilab (https://www.scilab.org/). Scilab is connected to the Maxwell System so that it executes its functions using this system as its front end to the Internet.
What is Scilab? See the answer to this question of the Scilab page https://www.scilab.org/about.
What is Scilab?
Scilab is a free and open source software for engineers & scientists, with a long history (first release in 1994) and a growing community (100 000 downloads every months worldwide).
Scilab is available under de GPL License . What does it mean? You have the freedom to:
* use the software for any purpose
* change the software to suit your needs,
* share the software with your friends and neighbors, and
* share the changes you make.
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