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Proceedings Paper

Partial inverse compensation techniques for linear control design in magnetostrictive transducers
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Paper Abstract

This paper focuses on the development of partial inverse compensation techniques for linear control design in systems employing magnetostrictive transducers operating in nonlinear and hysteretic regimes. At low drive levels, linear models can be used to characterize strains and forces generated by magnetostrictive transducers with reasonable accuracy. However, at the moderate to high drive levels where transducer performance is optimal, inherent constitutive nonlinearities and hysteresis must be accommodated to achieve the accuracy and speed requirements for high performance applications. Appropriate nonlinear and hysteretic modeling techniques are reviewed and an inverse compensator based on the nonlinear kernel of the model is developed. The performance of the technique is illustrated through numerical examples.

Paper Details

Date Published: 21 August 2001
PDF: 12 pages
Proc. SPIE 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures, (21 August 2001); doi: 10.1117/12.436501
Show Author Affiliations
James M. Nealis, North Carolina State Univ. (United States)
Ralph C. Smith, North Carolina State Univ. (United States)


Published in SPIE Proceedings Vol. 4326:
Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures
Vittal S. Rao, Editor(s)

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