Preisach classical and nonlinear modeling of hysteresis in piezoceramic deformable mirrors

摘要: In this work the Preisach classical and nonlinear models are used to model hysteretic response of a piezoceramic deformable mirror for use in adaptive optics. Experimental results show that both predict behavior within 5% root-mean-squared (rms) error . An inversion algorithm linearization was implemented tested an open-loop optics system using Shack-Hartmann (SH) sensor. Measured errors were reduced from 20% rms around 3%.