Adaptive optics control system for segmented MEMS deformable mirrors

2010 ◽  
Author(s):  
Carl J. Kempf ◽  
Michael A. Helmbrecht ◽  
Marc Besse
Keyword(s):  
Control System ◽  
Adaptive Optics ◽  
Deformable Mirrors

The Condition for Absolute Stability of an Electroelastic Actuator Control System for Nanomechatronics

2020 ◽  
Vol 10 (10) ◽  
pp. 52-58
Author(s):  
Sergey M. AFONIN ◽  
Keyword(s):  
Control System ◽  
Adaptive Optics ◽  
Absolute Stability ◽  
Deformation Characteristic ◽  
Straight Line Segment ◽  
Control Mechanisms ◽  
Relative Width ◽  
Random Inputs ◽  
Deformation Control ◽  
Actuator Control

An electroelastic actuator for nanomechatronics is used in nanotechnology, adaptive optics, microsurgery, microelectronics, and biomedicine to actuate or control mechanisms, systems based on the electroelastic effect, and to convert electrical signals into mechanical displacements and forces. In nanomechatronic systems, a piezoactuator is used in scanning microscopy, laser systems, in astronomy for precision alignment, for compensation of temperature, gravitational deformations and atmospheric turbulence, focusing, and stabilizing the image. In this study, a condition for absolute stability of an electroelastic actuator control system for nanomechatronics under deterministic and random inputs is obtained. A number of equilibrium positions in an electroelastic actuator mechatronic control system are found, the totality of which is represented by a straight line segment. The electroelastic actuator’s deformation control system dead band relative width is determined for the actuator’s symmetric and asymmetric hysteresis characteristics. Under deterministic inputs and with fulfilling the condition for the derivative of the nonlinear hysteresis actuator deformation characteristic, the set of equilibrium positions of the electroelastic actuator control system for nanomechatronics is absolutely stable. Under random inputs, the system absolute stability with respect to the mathematical expectations of the electroelastic actuator mechatronic control system equilibrium positions has been determined subject to fulfilling the condition on the derivative of the actuator hysteresis characteristic.

Large-Stroke MEMS Deformable Mirrors for Adaptive Optics

2006 ◽  
Vol 15 (3) ◽  
pp. 572-583 ◽  
Author(s):  
D.J. Dagel ◽  
W.D. Cowan ◽  
O.B. Spahn ◽  
G.D. Grossetete ◽  
A.J. Grine ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Deformable Mirrors

Bimorph Deformable Mirrors for Adaptive Optics of Human Retinal Imaging System

2013 ◽  
Vol 33 (2) ◽  
pp. 0211001 ◽  
Author(s):  
周虹 Zhou Hong ◽  
官春林 Guan Chunlin ◽  
戴云 Dai Yun
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Deformable Mirrors

scholarly journals A Zernike mode decomposition decoupling control algorithm for dual deformable mirrors adaptive optics system

2013 ◽  
Vol 21 (20) ◽  
pp. 23885 ◽  
Author(s):  
Wenjin Liu ◽  
Lizhi Dong ◽  
Ping Yang ◽  
Xiang Lei ◽  
Hu Yan ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Control Algorithm ◽  
Decoupling Control ◽  
Deformable Mirrors ◽  
Mode Decomposition ◽  
Adaptive Optics System

Micro-electro-mechanical deformable mirrors for advanced adaptive optics applications

1999 ◽  
Author(s):  
J. Y. Decker ◽  
Scot S. Olivier ◽  
James A. Folta ◽  
William D. Cowan
Keyword(s):  
Adaptive Optics ◽  
Deformable Mirrors

scholarly journals Adaptive optics ophthalmologic systems using dual deformable mirrors

2007 ◽  
Author(s):  
S. M. Jones ◽  
S. Olivier ◽  
D. Chen ◽  
S. Joeres ◽  
S. Sadda ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Deformable Mirrors

T1601-2-1 Development of piezoelectric MEMS deformable mirrors and their application for adaptive optics

2009 ◽  
Vol 2009.8 (0) ◽  
pp. 245-246
Author(s):  
Daisuke HIRAMARU ◽  
Hiroyuki SENZAI ◽  
Atsuhito OKONOGI ◽  
Kyohei TERO ◽  
Takashi MIURA ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Deformable Mirrors ◽  
Piezoelectric Mems
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