Index based triangulation method for efficient generation of large three-dimensional ultrasonic C-scans
Mineo, Carmelo and Riise, Jonathan and Summan, Rahul and MacLeod, Charles N. and Pierce, S. Gareth (2018) Index based triangulation method for efficient generation of large three-dimensional ultrasonic C-scans. Insight: The Journal of the British Institute of Non-Destructive Testing. ISSN 1354-2575 (https://doi.org/10.1784/insi.2018.60.4.183)
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Abstract
The demand for high speed ultrasonic scanning of large and complex components is driven by a desire to reduce production bottlenecks during the non-destructive evaluation of critical parts. Emerging systems (including robotic inspection) allow the collection of large data volumes in short time spans, compared to existing inspection systems. To maximize throughput, it is crucial that the reconstructed inspection data sets are generated and evaluated rapidly without a loss of detail. This requires new data visualization and analysis tools capable of mapping complex geometries whilst guaranteeing full part coverage. This paper presents an entirely new approach for the visualization of three-dimensional ultrasonic C-scans, suitable for application to high data throughput ultrasonic phased array inspection of large and complex parts. Existing reconstruction approaches are discussed and compared with the new Index Based Triangulation (IBT) method presented. The IBT method produces 3D C-scan representation, presented as coloured tessellated surfaces, and the approach is shown to work efficiently even on challenging geometry. An additional differentiating characteristic of the IBT method is that it allows easy detection of lack of coverage (an essential feature to ensure that inspection coverage can be guaranteed on critical components). Results demonstrate that the IBT C-scan generation approach runs over 60 times faster than a C-scan display based on Delaunay triangulation and over 500 times faster than surface reconstruction C-scans. In summary the main benefits of the new IBT technique are: • High speed generation of C-scans on large ultrasonic data sets (orders of magnitude improvement over surface reconstruction C-Scans) • Ability to operate efficiently on 3D mapped data sets (allowing 3D interpretation of C scans on complex geometry components) • Intrinsic indication of lack of inspection coverage
ORCID iDs
Mineo, Carmelo ORCID: https://orcid.org/0000-0002-5086-366X, Riise, Jonathan ORCID: https://orcid.org/0000-0002-5714-4940, Summan, Rahul ORCID: https://orcid.org/0000-0002-4090-4528, MacLeod, Charles N. ORCID: https://orcid.org/0000-0003-4364-9769 and Pierce, S. Gareth ORCID: https://orcid.org/0000-0003-0312-8766;-
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Item type: Article ID code: 63243 Dates: DateEvent1 April 2018Published1 April 2018Published Online23 January 2018Accepted1 August 2017SubmittedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering
Strategic Research Themes > Advanced Manufacturing and Materials
Technology and Innovation Centre > Sensors and Asset ManagementDepositing user: Pure Administrator Date deposited: 12 Feb 2018 15:06 Last modified: 05 Nov 2024 01:38 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/63243