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Loading Analysis of a Remotely Interrogatable Passive Microvalve

  • Ajay C. Tikka
  • Said F. Al-Sarawi
  • Derek Abbott
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 49)

Abstract

We present the dynamic loading analysis of a normally closed, remotely actuated, secure coded, electrostatically driven, active microvalve using passive components. The design employs a synergetic approach to incorporates the advantages of both electroacoustic correlation and electrostatic actuation into the microvalve structure. This is carried out by utilising the complex signal processing capabilities of two identical, 5×2-bit Barker sequence encoded, acoustic wave correlators. An electrostatically driven microchannel, comprising of two conducting diaphragms as the top and bottom walls, is placed in between the compressor IDT’s of the two correlators. Secure interrogability of the microvalve is demonstrated by the 3-D finite element modelling of the complete structure and the quantitative deduction of the harmonic code dependent microchannel actuation. Furthermore, the dynamic transient analysis is employed to investigation the nonlinear time response of the microvalve and other performance criteria of the structure such as microchannel opening dynamics and the microvalve loading time.

Keywords

Surface Acoustic Wave Check Valve Ultrasonic Motor Acoustic Streaming Electrostatic Actuation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Ajay C. Tikka
    • 1
  • Said F. Al-Sarawi
    • 1
  • Derek Abbott
    • 2
  1. 1.Centre for High Performance Integrated Technologies and Systems (CHiPTec)The University of AdelaideAustralia
  2. 2.Centre for Biomedical EngineeringThe University of AdelaideAustralia

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