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Development and experimental validation of automatic conversion procedure from mechanical to electrical connection for MEMS equivalent circuit
Author(s) -
Fujiwara Nobuyo,
Asami Kazuo,
Iriye Yasuroh,
Koike Tomoyuki,
Tsuchiya Toshiyuki,
Hashiguchi Gen
Publication year - 2009
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20417
Subject(s) - equivalent circuit , interconnection , microelectromechanical systems , admittance , electrical element , electronic circuit , electronic engineering , mechanical system , circuit extraction , transducer , electrical network , engineering , topology (electrical circuits) , materials science , electrical engineering , mechanical engineering , electrical impedance , voltage , optoelectronics , telecommunications
This paper describes equivalent circuit for micro electromechanical system (MEMS) using a type of behavior model for expressing mechanical and electromechanical element within circuit simulation, in order to simulate their dynamic behaviors easily. To fully treat the equivalent circuit as the behavior model, the equivalent interconnection expression for mechanical splice is required. In this work, a new approach has been proposed for converting the system composed of mechanical and electromechanical elements to equivalent circuit expression. This approach consists of substitution of unit equivalent elements and conversion of each equivalent interconnection for mechanical splices. We applied graph theory for equivalent interconnection. With this approach, complex MEMS consisting of a number of transducers and mechanical elements can be easily converted into equivalent circuits. In order to validate this approach, the resonant property of electrostatic comb‐drive actuator was simulated using the equivalent circuit generated and measured experimentally. The simulated resonant frequency was in good agreement with the measurement and the admittance characteristics were well described using this circuit with a consideration of coupling capacitances at the comb electrodes. Copyright © 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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