A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan J. Walker; A.J. Mulholland; Ewan Campbell; G. Hayward

doi:10.1109/ULTSYM.2008.0342

A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan J. Walker, A.J. Mulholland, Ewan Campbell, G. Hayward

Research output: Contribution to conference › Paper › peer-review

6 Citations (Scopus)

111 Downloads (Pure)

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
Pages	1409-1412
Number of pages	3
DOIs	https://doi.org/10.1109/ULTSYM.2008.0342
Publication status	Published - 2008
Event	2008 IEEE International Ultrasonics Symposium - Beijing, China Duration: 1 Jan 1900 → …

Conference

Conference	2008 IEEE International Ultrasonics Symposium
City	Beijing, China
Period	1/01/00 → …

Keywords

electrostaic transducer
fluidic amplification

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10.1109/ULTSYM.2008.0342

walkeretal_2008.pdfAccepted author manuscript, 2.32 MB

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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'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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AU - Walker, Alan J.

AU - Mulholland, A.J.

AU - Campbell, Ewan

AU - Hayward, G.

PY - 2008

Y1 - 2008

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.

KW - electrostaic transducer

KW - fluidic amplification

U2 - 10.1109/ULTSYM.2008.0342

DO - 10.1109/ULTSYM.2008.0342

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Y2 - 1 January 1900

ER -

A theoretical model of a new electrostatic transducer incorporating fluidic amplification

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Keywords

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