Electrostatic Transducer with Square Membrane and Non-Planar Back Plate: Simplified Model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F09%3A00168515" target="_blank" >RIV/68407700:21230/09:00168515 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3813/AAA.918218" target="_blank" >http://dx.doi.org/10.3813/AAA.918218</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3813/AAA.918218" target="_blank" >10.3813/AAA.918218</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrostatic Transducer with Square Membrane and Non-Planar Back Plate: Simplified Model

Popis výsledku v původním jazyce

This paper aims at providing generalized lumped-element circuits for the modelling of electrostatic microphones with non planar smooth backing electrode. These transducers consist of a circular membrane (or square membrane when fabricated using etching processes), a backing, non planar electrode without holes, both being separated by a thin fluid-gap, the fluid being enclosed in a peripheral reservoir beyond this fluid-gap. The modelling is a generalisation of the classical models: it includes a generalized mechanical impedance of the membrane, and an adapted approach to derive separately both a generalized reactance and a generalized resistance due respectively to the compressibility and the viscosity of the fluid-gap (beyond the inertia). Finally, theoretical results on the sensitivity of miniaturised microphones as a function of the frequency are provided and discussed.

Název v anglickém jazyce

Electrostatic Transducer with Square Membrane and Non-Planar Back Plate: Simplified Model

Popis výsledku anglicky

This paper aims at providing generalized lumped-element circuits for the modelling of electrostatic microphones with non planar smooth backing electrode. These transducers consist of a circular membrane (or square membrane when fabricated using etching processes), a backing, non planar electrode without holes, both being separated by a thin fluid-gap, the fluid being enclosed in a peripheral reservoir beyond this fluid-gap. The modelling is a generalisation of the classical models: it includes a generalized mechanical impedance of the membrane, and an adapted approach to derive separately both a generalized reactance and a generalized resistance due respectively to the compressibility and the viscosity of the fluid-gap (beyond the inertia). Finally, theoretical results on the sensitivity of miniaturised microphones as a function of the frequency are provided and discussed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACTA ACUSTICA UNITED WITH ACUSTICA

ISSN

1610-1928

e-ISSN

—

Svazek periodika

95

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

866-873

Kód UT WoS článku

000270735800011

EID výsledku v databázi Scopus

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