Title: Problems of Acoustic Sources Location in 3D Medium
Abstract: Acoustic 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 procedure. The most applicable acoustic methods such as acoustic emission, impact-echo, and phased-array techniques are applied to locate voids, defects or growing cracks and microcracks in structures. However, this task for three-dimensional (3D) volume structures has some specific difficulties connected with 3D source locations and has been based on different techniques of calculations. There are two main techniques, using the geometric acoustics approach, which can provide calculations of sources coordinates: the direct geometric arrays algorithm and the maximum-likelihood method. This work is devoted exclusively to the analysis of mathematic algorithms of 3D acoustic source locations using direct geometric arrays algorithm techniques.
Publication Year: 2005
Publication Date: 2005-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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