Undergraduate Process Control: Clarification of Some Concepts

Authors

  • R. Ravi Indian Institute of Technology Kanpur

Abstract

A fundamental result of linear systems theory is shown to extend the meaning of frequency response to unstable systems. A simple example is used to illustrate the general idea and also to demonstrate how the frequency response of unstable systems may in principle be measured. Further, some common pitfalls in the use of the Nyquist stability criterion are pointed out, thus clarifying its application.

Author Biography

R. Ravi, Indian Institute of Technology Kanpur

R. Ravi obtained his BTech from the Indian Institute of Technology, Madras, in 1984, and his PhD from Purdue University in 1991. His research interests are in applied statistical mechanics and process control. For the past few years, his abiding passion has been the understanding of the origins of thermodynamics and fluid mechanics.

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Published

2001-04-01

Issue

Vol. 35 No. 2 (2001): Spring 2001

Section

Manuscripts