Study on Self Judgment of Location Lave Speed of Acoustic Emission on Concrete Members

Qing Li; Qi Yin Shi; Zhi Yu Jin; Fan Yang; Bao Bing Liu

doi:10.4028/www.scientific.net/AMM.578-579.1118

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 578-579Study on Self Judgment of Location Lave Speed of...

Study on Self Judgment of Location Lave Speed of Acoustic Emission on Concrete Members

Abstract:

The wave speed of acoustic emission in the medium is uncertain, which is influenced by the source characteristics and the relative position between the acoustic emission source and the sensors. Due to this difference, the results of TDOA location method determination of wave speed in advance are very discrete. As to liner location ,the more farther the distance between two acoustic emission source sensor are, the more serious the discrete error are. Any of the two sensors, a location line can be obtained by setting the wave speed as a horizontal coordinate and the location as the vertical coordinate. The horizontal coordinate of location line of the different sensors is the real wave speed of acoustic emission events. This method has lower computational complexity, which can overcome the influence on acoustic emission location which wave speed setting error brings, having some practical value in Engineering.

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Periodical:

Applied Mechanics and Materials (Volumes 578-579)

Pages:

1118-1124

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.578-579.1118

Citation:

Cite this paper

Online since:

July 2014

Authors:

Qing Li, Qi Yin Shi, Zhi Yu Jin, Fan Yang, Bao Bing Liu

Keywords:

Acoustic Emission (AE), Location, Wave Speed

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