Radiographic Investigations of Micro-Ruptures in Technical Diaphrams
Accumulators are used in lots of applications. So they are used as a pressure accumulator for quick energy supply to hold a constant pressure (equalization of leakage), for pulsation damping and as an element of suspension. We can differ between 3 types of accumulators: 1. Diaphragm Accumulator, 2. Piston ccumulator 3. Metal Bellow Accumulator. At applications with high requirements to permeation the diaphragm accumulators are equipped with so called multi-layer diaphragms. During test series some of these accumulators failed because of big gas losses. At a first look, no external damage could be seen, so that the damage was assumed in the internal layer.
In this project a detailed X-ray based non-destructive testing (NDT) of accumulator membranes is carried out. This includes digital X-ray fluoroscopy using a Philips Computed Radiography (PCR) system as well as conventional and micro CT investigations.
Right: Single tomographic section of a membrane rupture, Left: the structure of the membrane rupture is revealed in the 3-D reconstruction
Publications
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Computed Tomography: From Photon Statistics to Modern Cone-Beam CT, Springer, Berlin, 2010, DOI: 10.1007/978-3-540-39408-2.
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Virtuelle Rekonstruktion und stereolithographisches Modell eines jungneolithischen Schädelfundes aus der Blätterhöhle in Hagen, Nordrhein-Westfalen, Archäologische Informationen, 30(1), 35–41, 2007, DOI: 10.11588/ai.2007.1.11152.
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Computed Tomography – A Tutorial for Anthropologists, In: Neanderthal 1856-2006, Verlag Philipp von Zabern, Mainz, 247–256, 2006, ISBN: 9783805336673.
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X-Ray Based NDT of Accumulator Membranes, 244–246, 2006.
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Forensische Gesichtsrekonstruktion. Ein Überblick über forensische, anthropologische und chirurgische Fragestellungen, Zeitschrift für Kriminalistik, 8-9(60), 502–505, 2006.
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Micro-CT Bildgebung an Zähnen des frühen Mittelpaläolithikums aus der Kratermulde des Schweinskopfes bei Bassenheim, Kr. Mayen - Koblenz, Berichte zur Archäologie an Mittelrhein und Mosel, 11, 9–19, 2006.
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Radiographic Investigations of Micro Ruptures in Technical Diaphrams, 11–13, 2005.
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Computertomographie in der Archäologie, 156, 2003.
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- Research
- Biochemical Engineering
- Magnetic Particle Imaging
- Magnetic Resonance Imaging
- Nuclear Imaging
- Image Computing
- X-Ray Based Imaging
- Granni
- Completed Projects
- Forensic Workplace for Soft Tissue Reconstruction
- Restoration and Conformal Mapping of Triangulated Surfaces
- Skin-Tumour Classification with Functional Infrared Imaging
- CT Imaging of Neandertaler Fossils
- Radiographic Investigations of Micro Ruptures in Technical Diaphragms
- T-Ray Imaging
- In-silico brain tumor growth
- Limited Angle Tomography
- Spectral X-Ray Diffraction