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Micro and nano-particles can be trapped by a non uniform electric field through the effect of dielectrophoretic principle. Dielectrophoresis (DEP) is used to separate, manipulate and detect micro particles in several domains, such as in biological or Carbon Nano-Tubes (CNTs) manipulations. Current methods to simulate the trajectory of micro-particles under a DEP force field are based on Finite element model (FEM) which requires new simulations when the electrode potential is changed, or on analytic equations which is limited to very simple geometries. In this paper, we propose a hybrid method between analytic and numeric calculation able to simulate complex geometries and to easily change the electrode potential along the trajectory. A few FEM simulations are used to create a database which enables online calculation of the object trajectory in function of the electrode potentials.

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