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Título del libro: 2007 Proceedings Of The Asme International Design Engineering Technical Conferences And Computers And Information In Engineering Conference, Detc2007
Título del capítulo: Characterization of a novel MEMGyroscope actuated by parametric resonance

Autores UNAM:
LAURA ADRIANA OROPEZA RAMOS;
Autores externos:

Idioma:

Año de publicación:
2008
Palabras clave:

Common problems; coriolis; Design theory and methodology; Dynamic behaviors; Dynamical properties; Fundamental frequency (FF); Harmonic oscillators (HO); international conferences; International designs; Micro and nano systems; micro gyroscope; Parameter variations; Parametric resonances; Technical conferences; Architectural design; Computer networks; Computers; Dynamic response; Dynamical systems; Dynamics; Engineering; Gyroscopes; Mechanics; Microfluidics; Microsensors; Nanosystems; Natural frequencies; Parametric devices; Parametric oscillators; Resonance; Technology; Information systems


Resumen:

We present a novel scheme for a robust micro gyroscope excited parametrically that reduces the sensitivity loss due to mismatching in the drive and the sense natural frequencies, which is a common problem in micro gyroscopes based on harmonic oscillators. We demonstrate experimentally that using a parametric resonance based actuator, the drive-mode signal has rich dynamic behavior with a large response in a large bandwidth. In this way the system is able to induce oscillations in the sense-mode by Coriolis force coupling, despite a clear disparity on their fundamental frequencies. Thus we propose a micro gyroscope that is less sensitive to parameter variations due to its inherent dynamical properties. Copyright © 2007 by ASME.


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