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Beugung von Schallwellen an der kreisförmigen Öffnung im schallharten Schirm

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The sound pressure at the central normal behind circular apertures in rigid screens of radii of ρ 0 = 0.5 λ, 1λ, 1.5 λ, 2 λ, 3 λ and 4 λ, and within the plane of the screens is experimentally investigated. An application of the Kirchhoff theory to these problems supplies two approximate solutions. These are compared with the experimental results, and it is shown that the observed diffraction effects down to a diaphragm radius of half the wave length can be fairly well explained — within the limits of the accuracy of measurements — using the velocity potential derived from the area of the aperture considered to be covered with dipoles.
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Document Type: Research Article

Publication date: January 1, 1952

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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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