title: Analytical and numerical modeling of an axisymmetrical electrostatic transducer with interior geometrical discontinuity.
abstract: The main purpose of the paper is to contribute at presenting an analytical and a numerical modeling which would be relevant for interpreting the couplings between a circular membrane, a peripheral cavity having the same external radius as the membrane, and a thin air gap (with a geometrical discontinuity between them), and then to characterize small scale electrostatic receivers and to propose procedures that could be suitable for fitting adjustable parameters to achieve optimal behavior in terms of sensitivity and bandwidth expected. Therefore, comparison between these theoretical methods and characterization of several shapes is dealt with, which show that the models would be appropriate to address the design of such transducers.
authors.affiliation: LUNAM Université, LAUM (Laboratoire d'acoustique de l'université du Maine), UMR CNRS 6613, Avenue Olivier Messiaen, F-72085 Le Mans, France.
authors.forename: Petr
authors.initials: P
authors.lastname: Honzík
authors.forename: Alexey
authors.initials: A
authors.lastname: Podkovskiy
authors.forename: Stéphane
authors.initials: S
authors.lastname: Durand
authors.forename: Nicolas
authors.initials: N
authors.lastname: Joly
authors.forename: Michel
authors.initials: M
authors.lastname: Bruneau
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D003198:Computer Simulation; D004566:Electrodes; D004867:Equipment Design; D008567:Membranes, Artificial; D008962:Models, Theoretical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D011312:Pressure; D013016:Sound; D055672:Static Electricity; D013997:Time Factors; D014160:Transducers, Pressure
chemical_list: D008567:Membranes, Artificial