Abstract
Detail description of physical and derived informative parameters used in transient thermal NDT is presented. Features of temperature-domain and time-domain parameters are discussed. Expressions for signal-to-noise ratio are specified and efficiency of spatial filters applied to IR thermograms with defects is discussed. Spatial frequency spectrums are obtained in non-defect and defect areas using fast Fourier transform.
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Vavilov, V., Bison, P.G., Bressan, C., Grinzato, E., Marinettl, S. (1994). Informative Parameters and Noise in Transient Thermal NDT. In: Maldague, X.P.V. (eds) Advances in Signal Processing for Nondestructive Evaluation of Materials. NATO ASI Series, vol 262. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1056-3_16
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DOI: https://doi.org/10.1007/978-94-011-1056-3_16
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