Journal
ULTRASONICS
Volume 48, Issue 6-7, Pages 636-642Publisher
ELSEVIER
DOI: 10.1016/j.ultras.2008.07.019
Keywords
Phased array; Non-destructive evaluation; Post-processing; Ultrasonic imaging; Scanning
Ask authors/readers for more resources
This paper describes a number of array post-processing methods developed for scanning applications in non-destructive evaluation. The approach is to capture and process the full matrix of all transmit-receive time-domain signals from the array. Post-processing the data in this way enables a multitude of imaging modalities to be implemented, including many that could not feasibly be achieved using conventional parallel. ring techniques. The authors have previously published work on imaging algorithms for improving the characterisation of defects in solids by post-processing the data from a static linear ultrasonic array. These algorithms are extended and applied to data from a scanned array. This allows the effective aperture and range of probing angles to be increased, hence improving imaging and defect characterisation performance. Practical implementation issues such as scanning speed and data transfer are discussed. (c) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available