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Stability Analysis of a MEMS Acceleration Sensor

The electrostatic actuation with its several advantages is the main principle for micro-electro-mechanical systems (MEMS). One major drawback is the nonlinear behavior, which results into instability, known as the electrostatic pull-in effect. This effect might also push a closed-loop configuration into instability and thus makes a linear time-invariant control inapplicable to the system. The paper investigates the stability of an acceleration sensor in closed-loop operation with this setting. A simplified controller adjustment gives a first insight into this topic. Practical implementations saturate on the quantizer's full-scale value, which is also considered in the stability analysis. Numerical phase-plane analysis verifies the stability and shows further surprising results.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa.de:swb:ch1-200700143
Date05 February 2007
CreatorsWolfram, Heiko, Dötzel, Wolfram
ContributorsTU Chemnitz, Fakultät für Elektrotechnik und Informationstechnik, University of West Bohemia, Pilsen, Czech Republic,
PublisherUniversitätsbibliothek Chemnitz
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typedoc-type:conferenceObject
Formattext/html, application/pdf, application/x-gzip, text/plain, application/zip, text/plain, application/zip

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