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https://hdl.handle.net/2440/52475
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Type: | Journal article |
Title: | Modelling a surface acoustic wave based remotely actuated microvalve |
Author: | Tikka, A. Al-Sarawi, S. Abbott, D. |
Citation: | Smart Materials and Structures, 2009; 18(4):1-8 |
Publisher: | IOP Publishing Ltd |
Issue Date: | 2009 |
ISSN: | 0964-1726 1361-665X |
Statement of Responsibility: | Ajay C Tikka, Said F Al-Sarawi and Derek Abbott |
Abstract: | We present a normally closed, remotely actuated, secure coded, electrostatically driven active microvalve using passive components. This is carried out by utilizing the complex signal processing capabilities of two identical 5 × 2-bit Barker sequence encoded acoustic wave correlators. An electrostatically driven microchannel, comprising two conducting diaphragms as the top and bottom walls, is placed in between the compressor interdigital transducers of the two correlators. Secure interrogability of the microvalve is demonstrated by finite element modelling of the complete structure and the quantitative deduction of the code dependent microchannel actuation. Furthermore, the influence of the excited acoustic modes of the correlator on the microchannel deflection is investigated to optimize the microvalve design. |
DOI: | 10.1088/0964-1726/18/4/045014 |
Published version: | http://dx.doi.org/10.1088/0964-1726/18/4/045014 |
Appears in Collections: | Aurora harvest 5 Electrical and Electronic Engineering publications |
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