Sluiter, Mark (2021) Modeling and Control of Hysteretic Deformable Mirror. Integration Project, Industrial Engineering and Management.
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Abstract
Adaptive optics is a scientific and engineering discipline whereby the performance of an optical system is improved by using information about the environment through which it passes. The deformable mirror element of the adaptive optics system is used for correcting the wavefront. Generally speaking, deformable mirrors consist of a reflective surface membrane which undergoes deformation as a result of discrete piezoelectric actuators positioned perpendicular to the surface. The Hysteretic Deformable Mirror reduces problems and increases functionality compared to the classical deformable mirror due to the application of a specially developed highly hysteretic piezoelectric material combined with a simple electrode layout. Modelling the hysteretic characteristics of the piezo material comes with a certain degree of complexity. The Preisach hysteresis operator, due to its suitability to describe hysteresis in all kinds of physical phenomena, has been set as the chosen operator for modelling the hysteresis of the piezo actuator. As unknown piezoelectric material may behave differently than the known counterparts, a first step in modeling the characteristic phenomena is obtaining extensive data on the behavior by an experimental setup. Once the data is obtained, mathematical modeling is applied to get a first grasp at precise control of the actuating purposes by the Preisach operator.
| Item Type: | Thesis (Integration Project) |
|---|---|
| Supervisor name: | Jayawardhana, B. and Munoz Arias, M. |
| Degree programme: | Industrial Engineering and Management |
| Thesis type: | Integration Project |
| Language: | English |
| Date Deposited: | 11 Jun 2021 11:25 |
| Last Modified: | 11 Jun 2021 11:25 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/24538 |
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