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

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

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7015e.189m&link_type=abstract

Adaptive Optics Systems. Edited by Hubin, Norbert; Max, Claire E.; Wizinowich, Peter L. Proceedings of the SPIE, Volume 7015

Physics

Optics

Scientific paper

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.

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