High speed adaptive ultrasonic phased array imaging system

1990 ◽  
Vol 87 (6) ◽  
pp. 2806-2806
Author(s):  
Stephen W. Smith ◽  
Gregg E. Trahey
Keyword(s):  
High Speed ◽  
Phased Array ◽  
Imaging System ◽  
Ultrasonic Phased Array ◽  
Array Imaging

Ultrasonic Phased Array 3D Imaging for the Steel Butt Weld Defects

2015 ◽  
Vol 727-728 ◽  
pp. 799-803 ◽  
Author(s):  
Zhi Hao Liu ◽  
Chao Lu
Keyword(s):  
Phased Array ◽  
Programming Algorithm ◽  
Butt Weld ◽  
Test Information ◽  
Detection Technology ◽  
Array Probe ◽  
Ultrasonic Phased Array ◽  
Imaging Detection ◽  
Linear Array Probe ◽  
Array Imaging

Ultrasonic phased array imaging detection technology combinating the focused beam and array probe movement can get powerful test information. It has been widely used in the steel butt weld detection. For making up the limitations of 2D view, in this paper,we used one-dimensional linear array probe, got 2D slice view data obtained by phased array ultrasonic S-scan, through software programming algorithm to realize 3D reconstruction of steel butt weld typical defects. Experiment shows that it can display more intuitive performance of the defects in space. Revealing a better shape, size and orientation information. Providing a reference for the final evaluation of the defect.

scholarly journals Monitoring fatigue crack growth using nonlinear ultrasonic phased array imaging

2017 ◽  
Vol 26 (5) ◽  
pp. 055006 ◽  
Author(s):  
Jingwei Cheng ◽  
Jack N Potter ◽  
Anthony J Croxford ◽  
Bruce W Drinkwater
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Phased Array ◽  
Nonlinear Ultrasonic ◽  
Ultrasonic Phased Array ◽  
Array Imaging

Ultrafast phased-array imaging with pump excitation for closed-crack imaging

2021 ◽  
Vol 14 (12) ◽  
pp. 126505
Author(s):  
Yoshikazu Ohara ◽  
Sylvain Haupert ◽  
Sinan Li
Keyword(s):  
Nondestructive Evaluation ◽  
Ultrasonic Testing ◽  
High Speed ◽  
Phased Array ◽  
Imaging Technique ◽  
Crack Opening ◽  
Closed Crack ◽  
Wave Imaging ◽  
Crack Dynamics ◽  
Array Imaging

Abstract Nondestructive evaluation of closed cracks is one of the most challenging problems in ultrasonic testing. Here, we propose a novel closed-crack imaging technique combining ultrafast phased-array with pump excitation. The pump excitation with kHz frequency can effectively induce the crack opening/closing behaviors since it can generate a large displacement of 1000 nm order. At the same time, ultrafast phased-array imaging, i.e. plane wave imaging, with MHz frequency stroboscopically captures the high-speed crack dynamics induced by pump excitation. We successfully proved the concept in a closed fatigue crack specimen.

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