A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan J. Walker; Anthony J. Mulholland; Ewan Campbell; Gordon Hayward

doi:10.1109/ULTSYM.2008.0342

A theoretical model of a new electrostatic transducer incorporating fluidic amplification

Alan J. Walker, Anthony J. Mulholland, Ewan Campbell, Gordon Hayward

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

6 Citations (Scopus)

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 International Ultrasonics Symposium
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	1409-1412
Number of pages	4
ISBN (Print)	978142424283
DOIs	https://doi.org/10.1109/ULTSYM.2008.0342
Publication status	Published - 21 Mar 2009
Externally published	Yes
Event	2008 IEEE Ultrasonics Symposium - Beijing, China Duration: 2 Nov 2008 → 5 Nov 2008

Conference

Conference	2008 IEEE Ultrasonics Symposium
Country/Territory	China
City	Beijing
Period	2/11/08 → 5/11/08

Keywords

Electrostatics
Biomembranes
Ultrasonic transducers
Impedance
Acoustic transducers
Voltage
Erbium
Mathematical model
Mathematics
Design engineering

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'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 = "Electrostatics, Biomembranes, Ultrasonic transducers, Impedance, Acoustic transducers, Voltage, Erbium, Mathematical model, Mathematics, Design engineering",

author = "Walker, {Alan J.} and Mulholland, {Anthony J.} and Ewan Campbell and Gordon Hayward",

year = "2009",

month = mar,

day = "21",

doi = "10.1109/ULTSYM.2008.0342",

language = "English",

isbn = "978142424283",

pages = "1409--1412",

booktitle = "2008 IEEE International Ultrasonics Symposium",

publisher = "IEEE",

address = "United States",

note = " 2008 IEEE Ultrasonics Symposium ; Conference date: 02-11-2008 Through 05-11-2008",

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TY - GEN

T1 - A theoretical model of a new electrostatic transducer incorporating fluidic amplification

AU - Walker, Alan J.

AU - Mulholland, Anthony J.

AU - Campbell, Ewan

AU - Hayward, Gordon

PY - 2009/3/21

Y1 - 2009/3/21

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 - Electrostatics

KW - Biomembranes

KW - Ultrasonic transducers

KW - Impedance

KW - Acoustic transducers

KW - Voltage

KW - Erbium

KW - Mathematical model

KW - Mathematics

KW - Design engineering

UR - https://ewh.ieee.org/conf/ius_2008/zz_index/z39_session_browser_index.html

U2 - 10.1109/ULTSYM.2008.0342

DO - 10.1109/ULTSYM.2008.0342

M3 - Conference contribution

SN - 978142424283

SP - 1409

EP - 1412

BT - 2008 IEEE International Ultrasonics Symposium

PB - IEEE

CY - Piscataway, NJ

T2 - 2008 IEEE Ultrasonics Symposium

Y2 - 2 November 2008 through 5 November 2008

ER -

A theoretical model of a new electrostatic transducer incorporating fluidic amplification

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Keywords

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