Partial inverse compensation techniques for linear control design in magnetostrictive transducers

James M. Nealis; Ralph C. Smith

doi:10.1117/12.436501

21 August 2001 Partial inverse compensation techniques for linear control design in magnetostrictive transducers

James M. Nealis, Ralph C. Smith

Proceedings Volume 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures; (2001) https://doi.org/10.1117/12.436501
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

James M. Nealis and Ralph C. Smith "Partial inverse compensation techniques for linear control design in magnetostrictive transducers", Proc. SPIE 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures, (21 August 2001); https://doi.org/10.1117/12.436501

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