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An acoustic method of fault-detection in ceramic lining plates

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The paper contains a general description of an acoustic measuring method, as well as of an electroacoustic measuring equipment designed for current quality tests of ceramic lining plates to be used in the building industry. The method is based on the physical relations, which exist between the acoustical parameters of the plate excited in mechanical vibration and its structural and mechanical properties.

It has been found that the distinctive feature, which may be used to recognize the defective plates, is the ratio of a few resonance frequencies corresponding to characteristic modes of vibrations. Similarly, plates with invisible structural defects may be detected by the measurement of the absolute value of a selected resonance frequency.

According to these rules, an experimental measuring equipment has been designed, constructed and evaluated. A new improved model will be subjected to detailed exploitation tests under normal production conditions in manufacture.
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Document Type: Research Article

Publication date: January 1, 1964

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.
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