Disaggregation of Preisach hysteresis model and nonlinear function least-squares fit

Dragos Maciuca; Gopal Vasudevan

doi:10.1117/12.786934

15 July 2008 Disaggregation of Preisach hysteresis model and nonlinear function least-squares fit

Dragos Maciuca, Gopal Vasudevan

Proceedings Volume 7015, Adaptive Optics Systems; 70156V (2008) https://doi.org/10.1117/12.786934
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

This work presents a novel approach of modeling hysteresis using the Preisach model. Instead of relying entirely on the Presisach model, the hysteretic behavior is separated into a non-linear least squares fit function and a Preisach model. This separation allows for the independent analysis of the non-linear portion and hysterestic behavior of actuators. In particular, the paper addresses the response modeling of deformable mirrors (DM) piezoceramic actuators for use in adaptive optics. Several inversion algorithms have also been developed and presented here. These algorithms are used in a feed-forward loop as part of the DM control algorithms.

Citation Download Citation

Dragos Maciuca and Gopal Vasudevan "Disaggregation of Preisach hysteresis model and nonlinear function least-squares fit", Proc. SPIE 7015, Adaptive Optics Systems, 70156V (15 July 2008); https://doi.org/10.1117/12.786934

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