Mapping thermal diffusivity

Ouyang, Zhong; Wang, Xun; Feng, Z. J.; Jin, Huijia; Sui, Hua; Han, Xiaoyan; Favro, L. D.; Thomas, R. L.
May 2000
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p617
Academic Journal
We describe applications of fast IR cameras to map the thermal diffusivity of a slab of material. The methodology is based on curve-fitting techniques like those described at the 1998 Review of Progress in QNDE. We will present a comparison between results obtained using a laboratory camera with those obtained using a portable camera suitable for field applications. The method has the potential for making sufficiently rapid and accurate measurements that it can be used to map the diffusivity over a slab for process-control applications, essentially in real time.—Research supported by the Institute for Manufacturing Research, Wayne State University. © 2000 American Institute of Physics.


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