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20 March 1985 The Non-Destructive Evaluation Of Composites And Other Materials By Thermal Pulse Video Thermography
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Abstract
The detection of sub-surface defects and structures, by thermal pulse video compatible thermal imagers, ie beginning to complement the slower methods of ultrasonic scanning and in some applications to surpass them. In principal a short pulse of radiation is emitted from a xenon flash tube and is absorbed by the surface of the material under inspection. This energy diffuses as heat through the material and sub-surface features are revealed as variations in surface temperature, either on the far face or near face, by a scanning infra-red camera. The promise of thermal pulse thermography lies in its ability to inspect materials for defects and quality with great speed and without physical contact. Other methods of applying heat are currently being investigated.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. M. Milne and W. N. Reynolds "The Non-Destructive Evaluation Of Composites And Other Materials By Thermal Pulse Video Thermography", Proc. SPIE 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control, (20 March 1985); https://doi.org/10.1117/12.946141
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