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Influence functions for a hysteretic deformable mirror with a high density 2D array of actuators

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posted on 2023-11-30, 19:49 authored by A. E. M. Schmerbauch, M. A. Vasquez-Beltran, A. I. Vakis, R. Huisman, B. Jayawardhana
We present modeling and analysis of a hysteretic deformable mirror where the facesheet interacts with a continuous layer of piezoelectric material that can be actuated distributively by a matrix of electrodes through multiplexing. Moreover, a method for calculating the actuator influence functions is described considering the particular arrangement of electrodes. The results are presented in a semi-analytical model to describe the facesheet's deformation caused by a high density array of actuators, and validated in a simulation. The proposed modeling of an interconnection layout of electrodes is used to determine the optimal pressures the actuators have to exert for achieving a desired surface deformation.

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