Advanced

Integrated Modeling of a Laboratory Setup for a Large Deformable Mirror

Heimsten, Rikard LU ; Andersen, Torben LU ; Owner-Petersen, Mette LU and MacMynowski, Douglas G. (2011) Conference on Integrated Modeling of Complex Optomechanical Systems In Integrated Modeling of Complex Optomechanical Systems 8336. p.83360-83360
Abstract
We study a concept for a low-cost, large deformable mirror for an Extremely Large Telescope. The use of inexpensive voice-coil actuators leads to a poorly damped faceplate, with many modes within the desired control bandwidth. A control architecture, including rate and position feedback to add damping and stiffness, for the faceplate has been presented in our previous papers. An innovative local control scheme which decouples adjacent actuators and suppresses low-order eigenmodes is a key feature in our controller. Here, we present an integrated model of a partially illuminated large deformable mirror in an experimental laboratory setup with a limited amount of actuators. From the model, conclusions are drawn regarding the number of... (More)
We study a concept for a low-cost, large deformable mirror for an Extremely Large Telescope. The use of inexpensive voice-coil actuators leads to a poorly damped faceplate, with many modes within the desired control bandwidth. A control architecture, including rate and position feedback to add damping and stiffness, for the faceplate has been presented in our previous papers. An innovative local control scheme which decouples adjacent actuators and suppresses low-order eigenmodes is a key feature in our controller. Here, we present an integrated model of a partially illuminated large deformable mirror in an experimental laboratory setup with a limited amount of actuators. From the model, conclusions are drawn regarding the number of actuators needed to identify the key features, such as local control performance, dynamic range, and controllability and robustness of the deformable mirror. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
local control, active damping, deformable mirror, distributed control, Adaptive optics
in
Integrated Modeling of Complex Optomechanical Systems
volume
8336
pages
83360 - 83360
publisher
SPIE
conference name
Conference on Integrated Modeling of Complex Optomechanical Systems
external identifiers
  • wos:000297925400023
  • scopus:84255188009
ISSN
0277-786X
1996-756X
DOI
10.1117/12.915571
language
English
LU publication?
yes
id
c1ff2df3-3c81-4c28-abcb-a5c47fb19894 (old id 2493909)
date added to LUP
2012-05-11 14:59:02
date last changed
2017-11-20 15:05:54
@inproceedings{c1ff2df3-3c81-4c28-abcb-a5c47fb19894,
  abstract     = {We study a concept for a low-cost, large deformable mirror for an Extremely Large Telescope. The use of inexpensive voice-coil actuators leads to a poorly damped faceplate, with many modes within the desired control bandwidth. A control architecture, including rate and position feedback to add damping and stiffness, for the faceplate has been presented in our previous papers. An innovative local control scheme which decouples adjacent actuators and suppresses low-order eigenmodes is a key feature in our controller. Here, we present an integrated model of a partially illuminated large deformable mirror in an experimental laboratory setup with a limited amount of actuators. From the model, conclusions are drawn regarding the number of actuators needed to identify the key features, such as local control performance, dynamic range, and controllability and robustness of the deformable mirror.},
  author       = {Heimsten, Rikard and Andersen, Torben and Owner-Petersen, Mette and MacMynowski, Douglas G.},
  booktitle    = {Integrated Modeling of Complex Optomechanical Systems},
  issn         = {0277-786X},
  keyword      = {local control,active damping,deformable mirror,distributed control,Adaptive optics},
  language     = {eng},
  pages        = {83360--83360},
  publisher    = {SPIE},
  title        = {Integrated Modeling of a Laboratory Setup for a Large Deformable Mirror},
  url          = {http://dx.doi.org/10.1117/12.915571},
  volume       = {8336},
  year         = {2011},
}