Acoustic emission source location from P-wave arrival time corrected data and virtual field optimization method

2022 ◽  
Vol 163 ◽  
pp. 108129
Author(s):  
Xueyi Shang ◽  
Yi Wang ◽  
Runxue Miao
Keyword(s):  
Acoustic Emission ◽  
Arrival Time ◽  
Optimization Method ◽  
Source Location ◽  
Emission Source ◽  
P Wave ◽  
Acoustic Emission Source ◽  
Virtual Field ◽  
Corrected Data ◽  
Wave Arrival

Automatic algorithm for triaxial hodogram source location in downhole acoustic emission measurement

Geophysics ◽  
1989 ◽  
Vol 54 (4) ◽  
pp. 508-513 ◽  
Author(s):  
K. Nagano ◽  
H. Niitsuma ◽  
N. Chubachi
Keyword(s):  
Acoustic Emission ◽  
Arrival Time ◽  
Field Measurements ◽  
Source Location ◽  
P Wave ◽  
Likelihood Method ◽  
Emission Measurement ◽  
Wave Direction ◽  
S Wave ◽  
Wave Arrival

An automatic acoustic emission (AE) source location algorithm has been developed for downhole AE measurement of subsurface cracks by using the triaxial hodogram method. The P-wave arrival time is detected by analyzing crosscorrelation coefficients among three components of AE signal energy; the P-wave direction is determined by the method of least squares. For detection of S-wave arrival time, a maximum‐likelihood method analyzes a distribution of instantaneous values of the SH-wave component amplitude. This algorithm can locate an AE source as accurately as human analysis. For field measurements, it takes less than 4 s to locate an AE source using a 16-bit personal computer with a program in C language. Automatic AE source location by the triaxial hodogram method has been realized with this algorithm.

scholarly journals An Analytical Solution for Acoustic Emission Source Location for Known P Wave Velocity System

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Longjun Dong ◽  
Xibing Li ◽  
Gongnan Xie
Keyword(s):  
Acoustic Emission ◽  
Analytical Solution ◽  
Linear Equations ◽  
Three Dimensional ◽  
Source Location ◽  
Emission Source ◽  
P Wave ◽  
Square Roots ◽  
Existence And Multiplicity ◽  
Acoustic Emission Source

This paper presents a three-dimensional analytical solution for acoustic emission source location using time difference of arrival (TDOA) measurements from N receivers, N⩾5. The nonlinear location equations for TDOA are simplified to linear equations, and the direct analytical solution is obtained by solving the linear equations. There are not calculations of square roots in solution equations. The method solved the problems of the existence and multiplicity of solutions induced by the calculations of square roots in existed close-form methods. Simulations are included to study the algorithms' performance and compare with the existing technique.

Acoustic emission source location in composite structure by Voronoi construction using geodesic curve evolution

2009 ◽  
Vol 126 (5) ◽  
pp. 2324-2330 ◽  
Author(s):  
R. Gangadharan ◽  
G. Prasanna ◽  
M. R. Bhat ◽  
C. R. L. Murthy ◽  
S. Gopalakrishnan
Keyword(s):  
Acoustic Emission ◽  
Composite Structure ◽  
Source Location ◽  
Emission Source ◽  
Curve Evolution ◽  
Geodesic Curve ◽  
Acoustic Emission Source

Acoustic emission source location considering refraction in layered media with cylindrical surface

2020 ◽  
Vol 30 (3) ◽  
pp. 789-799 ◽  
Author(s):  
Zi-long ZHOU ◽  
Jing ZHOU ◽  
Xin CAI ◽  
Yi-chao RUI ◽  
Lian-jun CHEN ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Cylindrical Surface ◽  
Layered Media ◽  
Source Location ◽  
Emission Source ◽  
Acoustic Emission Source

Research on Acoustic Emission Source Location Imaging in Aluminum Alloy Plate-type Structure

2019 ◽  
Vol 48 (4) ◽  
pp. 20180831
Author(s):  
Shaofeng Wang ◽  
Daorui Wang ◽  
Jianguo Wang ◽  
Hailing Wang ◽  
Guang Xu ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Aluminum Alloy ◽  
Source Location ◽  
Type Structure ◽  
Emission Source ◽  
Alloy Plate ◽  
Acoustic Emission Source ◽  
Aluminum Alloy Plate ◽  
Plate Type
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