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In this paper, a tracking control scheme is proposed for optical manipulation of biological cell with unknown trapping stiffness. The requirement on the model of the trapping stiffness is eliminated in the proposed formulation and thus system identification and calibration are not needed. The unknown trapping stiffness and the uncertain dynamic parameters are estimated separately, with on-line update...
Optical tweezer is a useful tool for non-contact micromanipulation tasks because it can manipulate biological cells precisely without causing damage to the cells. In many optical manipulation techniques, the measurement of the velocity of the cell is necessary. Since it is difficult to measure the velocity of the cell, the velocity information is usually obtained by differentiating the position of...
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