Modeling VRALA, The Next-Generation Actuator For High-Density, Tick Secondary Mirrors For Astronomy
Date Issued
2010
Author(s)
Abstract
The next-generation of Extremely Large Telescopes adaptive optics systems require high-order, long-stroke, quite large deformable mirrors. Higher forces and greater actuator densities than the ones provided by the current technology are needed, still maintaining the severe accuracy and bandwidth requests. Based on a very simple magnetic circuit, providing a compact device, the VRALA actuator accomplishes this very demanding goal. With an efficiency of about 7 N/W and an overall radius that allows actuator separations as low as 25 mm, the deformable mirror can be actuated with large forces on small spatial scales, with a little thermal impact, and/or its thickness can be increased, in order to simplify the manufacturing.
Coverage
Proceedings of the COMSOL Conference 2010 Paris
Conferenece
COMSOL Conference 2010
Conferenece place
Paris, France
Conferenece date
November 17-19, 2010
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
del_vecchio_paper.pdf
Description
PDF editoriale
Size
345.85 KB
Format
Adobe PDF
Checksum (MD5)
dcfa6fc3827b20c1f448b34576debb59