Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators

In this paper, a rectangular magnetic fluid deformable mirror (MFDM) with dual-layer actuators is proposed, which is designed to improve the correction performance for full-order aberrations. Compared with the conventional adaptive optics system that uses two mirrors to configure as a woofer–tweeter...

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Main Authors: Zhu Zhang, Xiang Wei, Zhizheng Wu, Gunner Scott, Yuanyuan Wang, Mei Liu, Merveilles Dziki
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:International Journal of Optomechatronics
Subjects:
Online Access:http://dx.doi.org/10.1080/15599612.2019.1588930
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author Zhu Zhang
Xiang Wei
Zhizheng Wu
Gunner Scott
Yuanyuan Wang
Mei Liu
Merveilles Dziki
author_facet Zhu Zhang
Xiang Wei
Zhizheng Wu
Gunner Scott
Yuanyuan Wang
Mei Liu
Merveilles Dziki
author_sort Zhu Zhang
collection DOAJ
description In this paper, a rectangular magnetic fluid deformable mirror (MFDM) with dual-layer actuators is proposed, which is designed to improve the correction performance for full-order aberrations. Compared with the conventional adaptive optics system that uses two mirrors to configure as a woofer–tweeter system, the proposed MFDM combines the two mirrors into one by using a two-layer layout design of the actuators. Firstly, based on the governing equations of the magnetic fluid, derived from the principles of conservation of fluid mass and magnetic field, the dynamics model of surface deflection of the MFDM is analyzed in Cartesian coordinates under the boundary conditions of the magnetic field and the kinematic conditions of magnetic fluid. Then, the analytical solutions of the surface movement of the mirror subject to the applied currents in the electromagnetic coils are obtained by properly separating the variables with truncated model numbers. Finally, the experimental results based on a fabricated prototype square MFDM show the effectiveness of modeling and the correction performance of the mirror for the full-order aberrations.
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spelling doaj.art-6a3ae27276614589a722b55b87a318ff2023-08-02T07:52:23ZengTaylor & Francis GroupInternational Journal of Optomechatronics1559-96121559-96202019-01-0113111710.1080/15599612.2019.15889301588930Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuatorsZhu Zhang0Xiang Wei1Zhizheng Wu2Gunner Scott3Yuanyuan Wang4Mei Liu5Merveilles Dziki6Shanghai UniversityShanghai UniversityShanghai UniversityUniversity of NevadaShanghai UniversityShanghai UniversityShanghai UniversityIn this paper, a rectangular magnetic fluid deformable mirror (MFDM) with dual-layer actuators is proposed, which is designed to improve the correction performance for full-order aberrations. Compared with the conventional adaptive optics system that uses two mirrors to configure as a woofer–tweeter system, the proposed MFDM combines the two mirrors into one by using a two-layer layout design of the actuators. Firstly, based on the governing equations of the magnetic fluid, derived from the principles of conservation of fluid mass and magnetic field, the dynamics model of surface deflection of the MFDM is analyzed in Cartesian coordinates under the boundary conditions of the magnetic field and the kinematic conditions of magnetic fluid. Then, the analytical solutions of the surface movement of the mirror subject to the applied currents in the electromagnetic coils are obtained by properly separating the variables with truncated model numbers. Finally, the experimental results based on a fabricated prototype square MFDM show the effectiveness of modeling and the correction performance of the mirror for the full-order aberrations.http://dx.doi.org/10.1080/15599612.2019.1588930deformable mirrordual-layer actuatorsdynamics modelingmagnetic fluidmultiphysics coupling
spellingShingle Zhu Zhang
Xiang Wei
Zhizheng Wu
Gunner Scott
Yuanyuan Wang
Mei Liu
Merveilles Dziki
Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
International Journal of Optomechatronics
deformable mirror
dual-layer actuators
dynamics modeling
magnetic fluid
multiphysics coupling
title Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
title_full Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
title_fullStr Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
title_full_unstemmed Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
title_short Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators
title_sort modeling and evaluation of magnetic fluid deformable mirror with dual layer actuators
topic deformable mirror
dual-layer actuators
dynamics modeling
magnetic fluid
multiphysics coupling
url http://dx.doi.org/10.1080/15599612.2019.1588930
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AT gunnerscott modelingandevaluationofmagneticfluiddeformablemirrorwithduallayeractuators
AT yuanyuanwang modelingandevaluationofmagneticfluiddeformablemirrorwithduallayeractuators
AT meiliu modelingandevaluationofmagneticfluiddeformablemirrorwithduallayeractuators
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