A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan Walker; A.J. Mullholland; E. Campbell; G. Hayward

doi:10.1109/ULTSYM.2008.0342

A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan Walker, A.J. Mullholland, E. Campbell, G. Hayward

Faculty of Computing, Engineering and Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the drilled pipes in the backplate. Dynamic equations for the impedance in each component of the device are calculated analytically and connected using interface conditions of continuity of pressure and radiation conditions into the air load. The model is able to produce solutions to the mechanical impedance of the device and the displacement of the membrane as a function of the device’s design parameters. Model results for the output pressure compare well with previous experimental data. The inverse problem of retrieving the design parameters for a desired output is discussed

Original language	English
Title of host publication	2008 IEEE Ultrasonics Symposium
Subtitle of host publication	Proceedings of a meeting held 2-5 November 2008, Beijing, China
Publisher	Institute of Electrical and Electronics Engineers
Pages	1409-1412
ISBN (Electronic)	9781424424801
DOIs	https://doi.org/10.1109/ULTSYM.2008.0342
Publication status	E-pub ahead of print - 1 Jan 2009
Event	IEEE International Ultrasonics Symposium, Beijing, China, 2008 - Location unknown - please update Duration: 1 Jan 2009 → 1 Jan 2009

Conference

Conference	IEEE International Ultrasonics Symposium, Beijing, China, 2008
Period	1/01/09 → 1/01/09

Keywords

electrostatic transducer
resonating conduits

Access to Document

10.1109/ULTSYM.2008.0342

Cite this

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title = "A theoretical model of a new electrostatic transducer incorporating fluidic amplification",

abstract = "This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the drilled pipes in the backplate. Dynamic equations for the impedance in each component of the device are calculated analytically and connected using interface conditions of continuity of pressure and radiation conditions into the air load. The model is able to produce solutions to the mechanical impedance of the device and the displacement of the membrane as a function of the device{\textquoteright}s design parameters. Model results for the output pressure compare well with previous experimental data. The inverse problem of retrieving the design parameters for a desired output is discussed",

keywords = "electrostatic transducer, resonating conduits",

author = "Alan Walker and A.J. Mullholland and E. Campbell and G. Hayward",

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doi = "10.1109/ULTSYM.2008.0342",

language = "English",

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Walker, A, Mullholland, AJ, Campbell, E & Hayward, G 2009, A theoretical model of a new electrostatic transducer incorporating fluidic amplification. in 2008 IEEE Ultrasonics Symposium: Proceedings of a meeting held 2-5 November 2008, Beijing, China. Institute of Electrical and Electronics Engineers, pp. 1409-1412, IEEE International Ultrasonics Symposium, Beijing, China, 2008, 1/01/09. https://doi.org/10.1109/ULTSYM.2008.0342

A theoretical model of a new electrostatic transducer incorporating fluidic amplification. / Walker, Alan; Mullholland, A.J.; Campbell, E. et al.

2008 IEEE Ultrasonics Symposium: Proceedings of a meeting held 2-5 November 2008, Beijing, China. Institute of Electrical and Electronics Engineers, 2009. p. 1409-1412.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Walker, Alan

AU - Mullholland, A.J.

AU - Campbell, E.

AU - Hayward, G.

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Y1 - 2009/1/1

N2 - This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the drilled pipes in the backplate. Dynamic equations for the impedance in each component of the device are calculated analytically and connected using interface conditions of continuity of pressure and radiation conditions into the air load. The model is able to produce solutions to the mechanical impedance of the device and the displacement of the membrane as a function of the device’s design parameters. Model results for the output pressure compare well with previous experimental data. The inverse problem of retrieving the design parameters for a desired output is discussed

AB - This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the drilled pipes in the backplate. Dynamic equations for the impedance in each component of the device are calculated analytically and connected using interface conditions of continuity of pressure and radiation conditions into the air load. The model is able to produce solutions to the mechanical impedance of the device and the displacement of the membrane as a function of the device’s design parameters. Model results for the output pressure compare well with previous experimental data. The inverse problem of retrieving the design parameters for a desired output is discussed

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KW - resonating conduits

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DO - 10.1109/ULTSYM.2008.0342

M3 - Conference contribution

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T2 - IEEE International Ultrasonics Symposium, Beijing, China, 2008

Y2 - 1 January 2009 through 1 January 2009

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A theoretical model of a new electrostatic transducer incorporating fluidic amplification

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