Title :
On the approximated control of optical tweezers via flatness based approach
Author :
Aguilar-Ibaez, C. ; Sira-Ramirez, Hebertt ; Rosas S, L.I.
Author_Institution :
Centro de Investig. en Comput., Inst. Politec. Nac., Mexico City, Mexico
Abstract :
A flatness based control strategy for the manipulation of a microscopical particle is presented in this paper. The strategy was possible due to the fact the optical tweezers (OT) is a flat system, with flat outputs given by the horizontal and vertical position coordinates of the geometric center of the laser beam. The controller was designed under the consideration that the particle is suspended in a frictionless medium. Therefore the stability analysis was relatively simple. The effectiveness of the control strategy was tested by numerical simulations, where the system tracked a straight line, an elliptic curve, and carry out the rest-to-rest transfer maneuver task by using a smooth trajectory.
Keywords :
laser beams; radiation pressure; stability; flatness based control; frictionless medium; laser beam; laser beam geometric center; microscopical particle manipulation; optical tweezers; rest-to-rest transfer maneuver; smooth trajectory; stability analysis; Control systems; Laser beams; Laser theory; Numerical simulation; Optical computing; Optical control; Optical microscopy; Optical saturation; Trajectory; Velocity control; Optical tweezers; flatness based control; numerical simulation; saturation function; velocity observers;
Conference_Titel :
Electrical Engineering, Computing Science and Automatic Control,CCE,2009 6th International Conference on
Conference_Location :
Toluca
Print_ISBN :
978-1-4244-4688-9
Electronic_ISBN :
978-1-4244-4689-6
DOI :
10.1109/ICEEE.2009.5393486