Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques
The experimental results obtained with a ferrofluidic deformable mirror controlled by electro-magnet actuators are presented here. Using a step input through a single actuator, we obtained a steady-state settling time of 100 ms; however, different combinations of overdrive inputs can be used to decr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | International Journal of Optomechatronics |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15599612.2018.1465147 |
| _version_ | 1827838330770817024 |
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| author | Maxime Rochette Ermanno F. Borra Jean-Philippe Déry Anna M. Ritcey |
| author_facet | Maxime Rochette Ermanno F. Borra Jean-Philippe Déry Anna M. Ritcey |
| author_sort | Maxime Rochette |
| collection | DOAJ |
| description | The experimental results obtained with a ferrofluidic deformable mirror controlled by electro-magnet actuators are presented here. Using a step input through a single actuator, we obtained a steady-state settling time of 100 ms; however, different combinations of overdrive inputs can be used to decrease it to 25 ms. A new technique which consists of laying down an elastomer membrane, coated with an aluminum film, on the ferrofluid is also discussed. By adding the membrane on the ferrofluid, it further decreases the time response by a factor of 2. Furthermore, the thin aluminum layer improves the reflectivity of the mirror. Finally, using the membrane and the overdrive techniques combined, the time response is improved by a factor of 20. Numerical simulations show that ferrofluidic mirrors using membranes and improved electronics should reach settling times of the order of a millisecond. Presumably, even lower settling times could be possible. |
| first_indexed | 2024-03-12T07:03:12Z |
| format | Article |
| id | doaj.art-77ea339adc7a41749a4c2b1ff7286a3c |
| institution | Directory Open Access Journal |
| issn | 1559-9612 1559-9620 |
| language | English |
| last_indexed | 2024-03-12T07:03:12Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Optomechatronics |
| spelling | doaj.art-77ea339adc7a41749a4c2b1ff7286a3c2023-09-02T23:36:11ZengTaylor & Francis GroupInternational Journal of Optomechatronics1559-96121559-96202018-01-01121203010.1080/15599612.2018.14651471465147Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniquesMaxime Rochette0Ermanno F. Borra1Jean-Philippe Déry2Anna M. Ritcey3Université LavalUniversité LavalUniversité LavalUniversité LavalThe experimental results obtained with a ferrofluidic deformable mirror controlled by electro-magnet actuators are presented here. Using a step input through a single actuator, we obtained a steady-state settling time of 100 ms; however, different combinations of overdrive inputs can be used to decrease it to 25 ms. A new technique which consists of laying down an elastomer membrane, coated with an aluminum film, on the ferrofluid is also discussed. By adding the membrane on the ferrofluid, it further decreases the time response by a factor of 2. Furthermore, the thin aluminum layer improves the reflectivity of the mirror. Finally, using the membrane and the overdrive techniques combined, the time response is improved by a factor of 20. Numerical simulations show that ferrofluidic mirrors using membranes and improved electronics should reach settling times of the order of a millisecond. Presumably, even lower settling times could be possible.http://dx.doi.org/10.1080/15599612.2018.1465147Adaptive opticsoptical componentsphysical optics |
| spellingShingle | Maxime Rochette Ermanno F. Borra Jean-Philippe Déry Anna M. Ritcey Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques International Journal of Optomechatronics Adaptive optics optical components physical optics |
| title | Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| title_full | Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| title_fullStr | Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| title_full_unstemmed | Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| title_short | Dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| title_sort | dynamic response of ferrofluidic deformable mirrors using elastomer membrane and overdrive techniques |
| topic | Adaptive optics optical components physical optics |
| url | http://dx.doi.org/10.1080/15599612.2018.1465147 |
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