Results 201 to 210 of about 197,256 (253)
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Non-Destructive Testing, 1973
Abstract The author discusses the significance of the amplitude of acoustic emission and its usefulness as a source of information. He describes the theory and application of amplitude sorting. He also presents some experimental results and concludes that the method has a significant future role as part of a more complete characterization of emission
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Abstract The author discusses the significance of the amplitude of acoustic emission and its usefulness as a source of information. He describes the theory and application of amplitude sorting. He also presents some experimental results and concludes that the method has a significant future role as part of a more complete characterization of emission
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An introduction to acoustic emission [PDF]
Journal of Physics E: Scientific Instruments, 1987 The technique of acoustic emission (AE) uses one or more sensors to 'listen' to a wide range of events that may take place inside a solid material. Depending on the source of this high frequency sound, there are broadly three application areas: structural testing and surveillance, process monitoring and control, and materials characterisation.
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Non-Destructive Testing, 1974
Abstract The author discusses the significance and measurement of the frequency and shape of acoustic emissions. He considers theoretical descriptions of acoustic emission and compares them with experimental evidence. He considers the implications of this understanding of the nature of acoustic emission and illustrates these implications by a ...
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Abstract The author discusses the significance and measurement of the frequency and shape of acoustic emissions. He considers theoretical descriptions of acoustic emission and compares them with experimental evidence. He considers the implications of this understanding of the nature of acoustic emission and illustrates these implications by a ...
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Solidification and Acoustic Emission
Cast Metals, 1989The acoustic signals emitted during the solidification of the organic compound maleic anhydride, and from commercial eutectic Al-Si alloy have been monitored.
Chen Baohua, Li Musen, Bian Xiufang
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International Journal of Tropical Insect Science, 1984
Studies on G. m. morsitans clearly indicate that the foundations for acoustic communication among tsetse exist. Tsetse produce sound in connection with the important physiological activities of feeding, mating and larviposition. The possible role of these acoustic emissions in the complex behaviour patterns of tsetse is discussed.
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Studies on G. m. morsitans clearly indicate that the foundations for acoustic communication among tsetse exist. Tsetse produce sound in connection with the important physiological activities of feeding, mating and larviposition. The possible role of these acoustic emissions in the complex behaviour patterns of tsetse is discussed.
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An Introduction to Acoustic Emission
1972A brief introduction to the field of acoustic emission is presented. The basic mechanisms of acoustic emission and a brief historical survey of the technology, along with some of its application to materials research and structural evaluation programs, are discussed.
C.A. Tatro, D.O. Harris, R.G. Liptai
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Mechanoluminescence and acoustical emission
Kristall und Technik, 1980AbstractIt is reported on the measuring of the synchronic mechanoluminescent (ML) and acoustical emission (AE). The source of both ML and AE was the mechanical deformation of organic glass, of steel and copper plates. The results confirmed the connection between MA and AE stimulated by the same deformation source.
F. Karel +3 more
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Acoustic emissions in micromanufacturing
The Journal of the Acoustical Society of America, 1994Micro manufacturing is posing fundamental problems in terms of realizing miniaturized parts and systems in real world of manufacturing [A. Ünal, J. Acoust. Soc. Am. Suppl. 1 88, S20 (1990)]. Acoustic emissions combined with modern artificial neural network based intelligent signals analysis may present new possibilities.
A. Ünal, C. H. Wu, S. Mackertich
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Acoustic emission for the 1990s
IEEE 1991 Ultrasonics Symposium, 2002An overview of recent results which provide new directions for acoustic emission (AE) technology during this decade is given. The 1990s will see new quantitative acoustic emission test methods develop as new technology takes advantage of progress in understanding AE practice. New aspects of AE described herein include different theoretical perspectives,
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The Journal of the Acoustical Society of America, 1991
The invention simulates acoustic emission signals produced by crack growth within a structure so that listening equipment may properly be calibrated to listen for acoustic emission signals from actual structural crack growth. The invention has several embodiments which generate acoustic emission signals from a crack growing in a specimen such that the ...
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The invention simulates acoustic emission signals produced by crack growth within a structure so that listening equipment may properly be calibrated to listen for acoustic emission signals from actual structural crack growth. The invention has several embodiments which generate acoustic emission signals from a crack growing in a specimen such that the ...
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