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The use of pulse-compression thermography for detecting defects in paintings
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Laureti, S., Sfarra, S., Malekmohammadi, H., Burrascano, P., Hutchins, David A., Senni, L., Silipigni, G., Maldague, X. P. V. and Ricci, M. (2018) The use of pulse-compression thermography for detecting defects in paintings. NDT & E International, 98 . pp. 147-154. doi:10.1016/j.ndteint.2018.05.003
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WRAP-use-pulse-compression-thermography-detecting-defects-paintings-Hutchins-2018.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (2320Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.ndteint.2018.05.003
Abstract
Interest in the conservation of paintings grows year by year. Their periodic inspection is essential for their conservation over the time. Thermographic non-destructive inspection is one technique useful for paintings, but it is essential to be able to detect buried defects while minimising the level of thermal stimulus. This paper describes a pulse-compression infrared thermography technique whereby defect detection is optimized while minimising the rise in temperature. To accomplish this task, LED lamps driven by a coded waveform based on a linear frequency modulated chirp signal have been used on paintings on both a wooden panel and a canvas layer. These specimens contained artificially fabricated defects. Although the physical condition of each painting was different, the experimental results show that the proposed signal processing procedure is able to detect defects using a low temperature contrast.
| Item Type: | Journal Article | ||||||||
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| Subjects: | N Fine Arts > ND Painting T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Painting -- Conservation and restoration, Thermography | ||||||||
| Journal or Publication Title: | NDT & E International | ||||||||
| Publisher: | Elsevier Sci Ltd. | ||||||||
| ISSN: | 0963-8695 | ||||||||
| Official Date: | September 2018 | ||||||||
| Dates: |
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| Volume: | 98 | ||||||||
| Page Range: | pp. 147-154 | ||||||||
| DOI: | 10.1016/j.ndteint.2018.05.003 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| RIOXX Funder/Project Grant: |
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