DocumentCode
2252085
Title
Acoustic emission source location using multi-frequency arrival times
Author
Lympertos, Efstratios ; Dermatas, Evangelos
Author_Institution
Inst. of Chem. Eng. & High Temp. Chem. Processes, Patras Univ.
fYear
2006
fDate
16-19 May 2006
Firstpage
389
Lastpage
392
Abstract
In this paper, a method for a direct estimation of the source-sensor distances and the time of an acoustic emission event is presented using multiple sensors and the arrival-times for a certain number of frequencies. The mean square error (MSE) problem is solved directly for any set of available data. It is also proved that in case of error-free arrival-times, the source position can be derived analytically as a function of the material constant
Keywords
acoustic signal processing; array signal processing; mean square error methods; MSE; acoustic emission source location; mean square error; multifrequency arrival times; source-sensor distances; Acoustic emission; Acoustic sensors; Frequency estimation; Friction; Least squares methods; Position measurement; Pulse modulation; Sensor arrays; Sensor phenomena and characterization; Surface acoustic waves;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean
Conference_Location
Malaga
Print_ISBN
1-4244-0087-2
Type
conf
DOI
10.1109/MELCON.2006.1653120
Filename
1653120
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