Mid Infrared Tomography of Polymer Pipes
| Autor: | Marco Ricci, David A. Hutchins, Duncan R. Billson, L.A.J. Davis, Stefano Laureti, Luca Senni, Peter Huthwaite |
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| Přispěvatelé: | Hutchins, D. A., Huthwaite, P., Davis, L. A. J., Billson, D. R., Senni, L., Laureti, S., Ricci, M., Engineering & Physical Science Research Council (EPSRC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Technology
Materials science Materials Science education Mid infrared Bending Materials Science Characterization & Testing BREAST 01 natural sciences FREQUENCY-DOMAIN 010309 optics Optics 0103 physical sciences RECONSTRUCTION 0912 Materials Engineering Tomography QC chemistry.chemical_classification Science & Technology business.industry Plane (geometry) Mechanical Engineering System of measurement 010401 analytical chemistry Acoustics Polymer Refraction 0104 chemical sciences TA chemistry Mechanics of Materials Solid mechanics sense organs TJ business |
| ISSN: | 0195-9298 |
| Popis: | Mid-infrared signals in the 2–5 μm wavelength range have been transmitted through samples of polymer pipes, as commonly used in the water supply industry. It is shown that simple through-transmission images can be obtained using a broad spectrum source and a suitable camera. This leads to the possibility of tomography, where images are obtained as the measurement system is rotated with respect to the axis of the pipe. The unusual 3D geometry created by a source of finite size and the imaging plane of a camera, plus the fact that refraction at the pipe wall would cause significant ray bending, meant that the reconstruction of tomographic images had to be considered with some care. A result is shown for a thinning defect on the inner wall of a polymer water pipe, demonstrating that such changes can be reconstructed successfully. |
| Databáze: | OpenAIRE |
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