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Modelling based radiography for NDE of subsea pipelines

  • This work presents the use of limited experimental measurements to develop a set of calibrated Simulation parameters that can then be used for reliable simulation of subsea pipeline inspections. The modelling software aRTist is used as the simulation tool, and the calibration is through comparison with experimental images of a well characterised sample in a water tank. Image Quality parameters such as signal-to-noise ratio, contrast and basic spatial resolution are compared with the aim of matching simulated values to experimental results. Currently the model is partially calibrated, with signal-to-noise ratio successfully matched while differences are still found in contrast-to-noise ratio comparisons. This means that measurements depending on absolute intensity are not accurate enough in the simulation at this stage. However, the simulation is found to be accurate for wall thickness measurements in tangential images, which are not based on absolute intensity, with simulated andThis work presents the use of limited experimental measurements to develop a set of calibrated Simulation parameters that can then be used for reliable simulation of subsea pipeline inspections. The modelling software aRTist is used as the simulation tool, and the calibration is through comparison with experimental images of a well characterised sample in a water tank. Image Quality parameters such as signal-to-noise ratio, contrast and basic spatial resolution are compared with the aim of matching simulated values to experimental results. Currently the model is partially calibrated, with signal-to-noise ratio successfully matched while differences are still found in contrast-to-noise ratio comparisons. This means that measurements depending on absolute intensity are not accurate enough in the simulation at this stage. However, the simulation is found to be accurate for wall thickness measurements in tangential images, which are not based on absolute intensity, with simulated and experimental cases producing similar results.zeige mehrzeige weniger

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Metadaten
Autor*innen:M. I. Haith, Uwe Ewert, Stefan Hohendorf, Carsten BellonORCiD, Andreas Deresch, P. Huthwaite, M. J. S. Lowe, Uwe ZscherpelORCiD
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):42th Annual review of progress in quantitative nondestructive evaluation
Jahr der Erstveröffentlichung:2016
Herausgeber (Institution):American institute of physics (AIP)
Verlag:AIP Publishing
Jahrgang/Band:1706
Erste Seite:110004-1
Letzte Seite:110004-8
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Modelling; Nondestructive evaluation; Pipeline inspection; Radiography
Veranstaltung:42nd Annual Review of Progress
Veranstaltungsort:Minneapolis, Minnesota, USA
Beginndatum der Veranstaltung:26.07.2015
Enddatum der Veranstaltung:31.07.2015
DOI:10.1063/1.4940575
ISSN:0094-243X
ISBN:978-0-7354-1353-5
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:28.09.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:28.09.2016
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