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Reachability and controllability of a particle in a dielectrophoretic system

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Title Reachability and controllability of a particle in a dielectrophoretic system
 
Creator SIMHA, H
BANAVAR, RN
CHANG, DE
 
Subject Dielectrophoresis
Accessibility
Small time local controllability
Micro/nano particles
 
Description A dielectrophoretic (DEP) force is a result of the interaction between a nonuniform electric field and a polarizable particle. As the electric field is dominant at the micro/nano scale, this force can be effectively used to manipulate and control particles on this scale. We consider the motion of a particle on an invariant line with the suspending medium being a fluid with a low Reynolds number. This DEP system has two states and two parameters: the two states are indicative of the particle's position and the induced dipole moment and the two parameters are a and c which depend upon the electric properties of the particle and the medium. The system is described by a set of ordinary differential equations with a quadratic term in the control variable (control being the applied voltage on the electrodes which induces the electric field) making the system non-affine in control. In the existing literature, the controllability studies of the DEP system have been restricted to reachability issues in the context of the time-optimal control problem. Here we present a comprehensive study of reachability, accessibility and controllability. (C) 2011 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2012-06-26T08:35:39Z
2012-06-26T08:35:39Z
2011
 
Type Article
 
Identifier SYSTEMS & CONTROL LETTERS,60(7)460-467
0167-6911
http://dx.doi.org/10.1016/j.sysconle.2011.03.011
http://dspace.library.iitb.ac.in/jspui/handle/100/14196
 
Language English