Acoustic emission signal source localization on plywood surface with cross-correlation method
نویسندگان
چکیده
منابع مشابه
Study of the Frictional Surface Damage Using Acoustic Emission Method
In this study, the change at rubbing surfaces has been investigated experimentally using an acoustic emission signal monitoring system. A steel ring is slipped on the surface of a metallic sheet to simulate frictional conditions. The mechanical disturbances caused by the movement of the ring produce stress waves propagating along the sheet surface. The out of plane displacement of the sheet su...
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Even today, a detailed description of the damage progress in wood or wood materials under tensile loading is still a challenge. The complexity of the damage behaviour results from the various mechanisms occurring simultaneously at several length scales. So far, few studies focused on mechanical behaviour of wood or wood materials by analysing acoustic emission (AE), although AE can provide info...
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Because of containing several model waveforms and transmission speed of each model are various, the source signal of rub-impact acoustic emission (AE) will lead to waveform distortion in propagation process, and it is difficult to achieve exact source location by traditional time difference of arrival algorithm. A chaotic neural network technique was introduced to calculate the location of AE s...
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Sound sources can be localized and analysed using phased microphone arrays.Beamforming is a method for processing microphone array data to produce images that represent the distribution of the acoustic source strength.It is an imaging technique that applies to continuous or discrete source distribution.A microphone array can be designed to be more sensitive to the sound coming from one or more ...
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ژورنال
عنوان ژورنال: Journal of Wood Science
سال: 2018
ISSN: 1435-0211,1611-4663
DOI: 10.1007/s10086-017-1672-x