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TECHNICAL PAPERS

Optimal Control of Arrays of Microcantilevers

[+] Author and Article Information
Mariateresa Napoli, Bassam Bamieh, Mohammed Dahleh

Department of Mechanical Engineering, University of California, Santa Barbara, CA 93106

J. Dyn. Sys., Meas., Control 121(4), 686-690 (Dec 01, 1999) (5 pages) doi:10.1115/1.2802535 History: Received June 22, 1998; Online December 03, 2007

Abstract

In this paper we will present a model for an array of microcantilevers that are used in Atomic Force Microscopy and nano-scale manufacturing. The microcantilevers are connected to each other through a common base, and are individually actuated. The sensors are also integrated on each microcantilever. We consider the problem of controlling a tightly packed array of identical microcantilevers that are dynamically coupled. This system is an example of a spatially-invariant system with a distributed array of sensors and actuators. We exploit the spatial invariance of the problem to design optimal ℋ2 controllers for this array. An analytic expression for the optimal controller is derived in the transformed domain, and estimates of the coupling range of the controller is obtained.

Copyright © 1999 by The American Society of Mechanical Engineers
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