Manipulation of Micro-objects Using Adhesion Forces and Dynamical Effects

Describes a dynamical strategy for releasing micro objects picked-up by means of adhesion forces. While sticking effects are used in order to capture an object by adequately choosing a high surface energy constitutive material for the end-effector, these same effects handicap considerably the release. We propose to take advantage of the inertial effects of both the end-effector and the manipulated object to overbalance adhesion forces and to achieve the release. Simulations show that for this purpose, accelerations as high as 10/sup 5/ m/s/sup 2/ are needed. Successful manipulation of a 40 /spl mu/m radius glass sphere is experimented.

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