Title :
Measurement of some nonlinearities in servomechanisms
Author :
Gehmlich, K. Dietrich ; Van Valkenburg, M. E.
Author_Institution :
University of Utah, Salt Lake City, Utah.
Abstract :
A method is given for establishing the describing functions and transfer function for a servomechanism with saturation and hysteresis nonlinearities. This method makes use of a technique given by V. B. Haas, Jr. (in a personal communication to the authors) in measuring the phase and amplitude of the first harmonic of the system output with respect to a sinusoidal input.
Keywords :
Frequency measurement; Harmonic analysis; Hysteresis; Nonlinear systems; Phase measurement; Servomechanisms; Transfer functions;
Journal_Title :
American Institute of Electrical Engineers, Part II: Applications and Industry, Transactions of the
DOI :
10.1109/TAI.1954.6371425
