Skip to main content
padlock icon - secure page this page is secure

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

Buy Article:

$30.00 + tax (Refund Policy)

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.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: September 1, 2009

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Online User License
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more