Abstract
This paper reports on a visual servoing system capable of 2DOF nanopositioning using a novel multi-axis electrostatic MEMS (MicroElectroMechanical System) device. The high aspect ratio micromanipulator was fabricated using a high yield process with Deep Reactive Ion Etching (DRIE) on Silicon-On-Insulator (SOI) wafers, which produces larger electrostatic forces and requires lower actuation voltages compared to most existing electrostatic microactuators. A real-time sub-pixel parameterized feature tracking algorithm of ±8.4nm resolution is incorporated into the visual servoing loop. The resulting system is capable of visually servoing to a precision of ±20nm in two axes using the inexpensive bulk micromachined multi-axis electrostatic micromanipulator and standard microscope optics with a CCD camera. Potential applications of the system are in the manipulation of subcellular structures within biological cells, and microassembly of hybrid MEMS devices.
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Sun, Y., Greminger, M.A., Potasek, D.P., Nelson, B.J. (2003). A Visually Servoed MEMS Manipulator. In: Siciliano, B., Dario, P. (eds) Experimental Robotics VIII. Springer Tracts in Advanced Robotics, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36268-1_22
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DOI: https://doi.org/10.1007/3-540-36268-1_22
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