VARIABLE SPLIT APERTURE PROCESSING OF FULL MATRIX CAPTURE PHASED ARRAY DATA

2011 ◽  
Author(s):  
R. Long ◽  
P. Cawley ◽  
J. Russell ◽  
Donald O. Thompson ◽  
Dale E. Chimenti
Keyword(s):  
Phased Array ◽  
Array Data ◽  
Full Matrix

scholarly journals Blending of phased array data

2018 ◽  
Author(s):  
Arno Duijster ◽  
Gert-Jan van Groenestijn ◽  
Paul van Neer ◽  
Gerrit Blacquière ◽  
Arno Volker
Keyword(s):  
Phased Array ◽  
Array Data

Full Matrix Capture and Total Focusing Method: The Next Evolution in Ultrasonic Testing

NDT World ◽  
2019 ◽  
pp. 37-41
Author(s):  
Алан Колдер ◽  
Alan Caulder
Keyword(s):  
Ultrasonic Testing ◽  
Phased Array ◽  
New Techniques ◽  
Full Matrix ◽  
Major Improvement ◽  
Ultrasonic Phased Array

Full matrix capture and the total focusing method are considered by many NDT experts to be the next major improvement to phased array ultrasonic testing. This article showcases some advantages the new techniques offer compared to the capabilities of traditional ultrasonic phased array.

scholarly journals Laser induced ultrasonic phased array using full matrix capture data acquisition and total focusing method

2016 ◽  
Vol 24 (19) ◽  
pp. 21921 ◽  
Author(s):  
Theodosia Stratoudaki ◽  
Matt Clark ◽  
Paul D. Wilcox
Keyword(s):  
Data Acquisition ◽  
Phased Array ◽  
Full Matrix ◽  
Ultrasonic Phased Array

THROUGH-WELD ULTRASONIC PHASED ARRAY INSPECTION USING FULL MATRIX CAPTURE

2010 ◽  
Author(s):  
R. Long ◽  
J. Russell ◽  
P. Cawley ◽  
Donald O. Thompson ◽  
Dale E. Chimenti
Keyword(s):  
Phased Array ◽  
Full Matrix ◽  
Ultrasonic Phased Array

scholarly journals Sparse-TFM Imaging of Lamb Waves for the Near-Distance Defects in Plate-Like Structures

Metals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 503 ◽  
Author(s):  
Haiyan Zhang ◽  
Yaqun Liu ◽  
Guopeng Fan ◽  
Hui Zhang ◽  
Wenfa Zhu ◽  
...  
Keyword(s):  
Phased Array ◽  
Lamb Waves ◽  
High Sensitivity ◽  
Thin Plates ◽  
Rapid Imaging ◽  
Destructive Testing ◽  
Full Matrix ◽  
Sparse Array ◽  
Ultrasonic Phased Array ◽  
Imaging Resolution

The ultrasonic phased array total focusing method (TFM) has the advantages of high imaging resolution and high sensitivity to small defects. However, it has a long imaging time and cannot realize near-distance defect imaging, which limits its application for industrial detection. A sparse-TFM algorithm is adopted in this work to solve the problem regarding rapid imaging of near- distance defects in thin plates. Green’s function is reconstructed through the cross-correlation of the diffuse full matrix captured by the ultrasonic phased array. The reconstructed full matrix recovers near-distance scattering information submerged by noise. A sparse array is applied to TFM for rapid imaging. In order to improve the imaging resolution, the location of active array elements in the sparse array can be optimized using the genetic algorithm (GA). Experiments are conducted on three aluminium plates with near-distance defects. The experimental results confirm that the sparse-TFM algorithm of Lamb waves can be used for near-distance defects imaging, which increases the computational efficiency by keeping the imaging accuracy. This paper provides a theoretical guidance for Lamb wave non-destructive testing of the near-distance defects in plate-like structures.

scholarly journals Full-matrix capture and USB3.0 for open platform phased array instruments

2016 ◽  
Author(s):  
Gavin Dao ◽  
Rémi Lallement ◽  
Ewen Carcreff ◽  
Dominique Braconnier
Keyword(s):  
Phased Array ◽  
Full Matrix ◽  
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