PVDF Cylindrical Electroacoustic Emitting Transducer with Perforated Back-plate: Simplified Analytical Approach
The objective of the paper is to provide a simplified analytical approach to describe the behaviour of a cylindrical emitting transducer with a piezoelectric polymer (PVDF) membrane which is loaded by a thin air-gap connected to a small central toroidal cavity through small holes in a back-plate. This paper departs from a previous one in that the presence of a perforated back-plate separates the volume behind the membrane in two parts (the air-gap and the central cavity); it departs also in that the construction of the analytical solutions is not made in terms of eigenmodes of both the membrane and the air-gap (as usual) in order to avoid difficulties due to the coupling of Dirichlet and Neumann eigenfunctions (exact solutions are used, involving integral formulation for one of them).
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Document Type: Research Article
Publication date: 2017-01-01
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- 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.
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