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Mid infrared tomography of polymer pipes
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Hutchins, David A., Huthwaite, P., Davis, Lee A. J., Billson, Duncan R., Senni, L., Laureti, S. and Ricci, M. (2020) Mid infrared tomography of polymer pipes. Journal of Nondestructive Evaluation, 39 . 73. doi:10.1007/s10921-020-00714-0
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Official URL: https://doi.org/10.1007/s10921-020-00714-0
Abstract
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.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
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| Divisions: | Faculty of Science > Engineering | |||||||||
| Library of Congress Subject Headings (LCSH): | Tomography, Polymers , Pipelines -- Design and construction, Infrared spectroscopy | |||||||||
| Journal or Publication Title: | Journal of Nondestructive Evaluation | |||||||||
| Publisher: | Springer New York LLC | |||||||||
| ISSN: | 0195-9298 | |||||||||
| Official Date: | 14 September 2020 | |||||||||
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| Volume: | 39 | |||||||||
| Article Number: | 73 | |||||||||
| DOI: | 10.1007/s10921-020-00714-0 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access | |||||||||
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