Thermographic detection of surface breaking defects using a scanning laser source
Reference:
Burrows, S. E., Dixon, S., Pickering, S. G., Li, T. and Almond, D. P., 2011. Thermographic detection of surface breaking defects using a scanning laser source. NDT & E International, 44 (7), pp. 589-596.
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Official URL:
http://dx.doi.org/10.1016/j.ndteint.2011.06.001
Abstract
Surface breaking defects are detected using a scanning laser source to deposit heat into a sample surface. Any lateral flow of heat is disturbed by such a defect, with a change in thermal spot shape being detected by an infrared camera. An apparent increase in temperature as the laser passes over a defect is due to a localised change in emissivity, allowing defects to be distinguished from surface markings. Defects have been detected in both stainless steel and aluminium.
Details
| Item Type | Articles |
| Creators | Burrows, S. E., Dixon, S., Pickering, S. G., Li, T. and Almond, D. P. |
| DOI | 10.1016/j.ndteint.2011.06.001 |
| Departments | Faculty of Engineering & Design > Mechanical Engineering |
| Research Centres | Materials Research Centre |
| Refereed | Yes |
| Status | Published |
| ID Code | 24999 |
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