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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 ISSN 0195-9298.

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Official URL: https://doi.org/10.1007/s10921-020-00714-0

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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
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Engineering and Medicine > Engineering > 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
Dates:
DateEvent
14 September 2020Available
27 August 2020Accepted
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 (Creative Commons)
Date of first compliant deposit: 10 September 2020
Date of first compliant Open Access: 24 November 2020
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/L022125/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/M020207/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
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