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Hardware Design of Anembedded Real-Time Acoustic Source Location Detector
2014 6th International Conference on New Technologies, Mobility and Security (NTMS), 2014This paper presents an embedded system that detects the 3 dimensional location of an acoustic source using a multiple microphone constellation. The system consists of a field programmable gate array (FPGA)that is used as main processing unit and the necessary peripherals.
ERTÜRK, SARP +3 more
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Problems of Acoustic Sources Location in 3D Medium
Journal of Thermoplastic Composite Materials, 2005Acoustic methods have a great potential for material characterization in industries because they can evaluate fatigue and fracture of thermoplastic materials without destroying them by using special signatures of dissipated energy as active or passive acoustic signals, which are generated from materials during the service period of time or testing ...
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Hyperbolic Source Location of Crack Related Acoustic Emission in Bone
Journal of Biomechanical Engineering, 2012Little work has been done on the localization of microcracks in bone using acoustic emission. Microcrack localization is useful to study the fracture process in bone and to prevent fractures in patients. Locating microcracks that occur before fracture allows one to predict where fracture will occur if continued stress is applied to the bone. Two source
John, O'Toole +3 more
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Acoustic Emission Source Location on Composite Laminates
2010Composite materials are increasingly used for structural applications because of their characteristics of lightness and strength. However a major disadvantage is the difficult in visualizing on the outside the damage produced by a stress of exercise or an accidental event.
LOPRESTO, VALENTINA +4 more
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Location of acoustic emission sources generated by air flow
Ultrasonics, 2000The location of continuous acoustic emission sources is a difficult problem of non-destructive testing. This article describes one-dimensional location of continuous acoustic emission sources by using an intelligent locator. The intelligent locator solves a location problem based on learning from examples. To verify whether continuous acoustic emission
, Kosel, , Grabec, , Muzic
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Identification of the number and locations of acoustic sources
Journal of Sound and Vibration, 2005The identification of the number and locations of acoustic sources is a fundamental problem of engineering acoustics. The method of multiple signal classification (MUSIC) has been widely used to solve this problem. The main drawback of the MUSIC method is that the unavoidable measurement noise should be identical for all the channels of measurement ...
J.H. Wang, C. Chang
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Location of pointlike acoustic emission sources in anisotropic plates
The Journal of the Acoustical Society of America, 1989In this paper is described a method by which a pointlike source of acoustic emission can be located in an anisotropic plate. The method is applicable for a source in an anisotropic solid of arbitrary symmetry as long as the principal acoustic axes of the material are known a priori.
Bernard Castagnede +2 more
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Acoustic Emission Source Location in Anisotropic Composite Plates
1991This work describes a method by which a pointlike source of acoustic emission can be located in a plate of composite material. The method is applicable to a source in an anisotropic material of arbitrary symmetry as long as the principal acoustic axes as well as the all set of elastic constants of the material are known a priori.
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Acoustic Emission Source Location
Key Engineering Materials, 1999Karen M. Holford, D.C. Carter
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Acoustic emission source location in dispersive media
Signal Processing, 2007Efstratios M. Lympertos +1 more
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