METHOD OF MEASURING SPATIAL DISTRIBUTION OF THERMOPHYSICAL PROPERTIES OF ISOTROPIC MATERIALS Russian patent published in 2015 - IPC G01N25/18 

FIELD: physics.

SUBSTANCE: method includes applying thermal action from an infrared heat source on the entire visible surface of analysed isotropic material; using a thermal imaging detector to measure radiant temperature at all points of the spatial grid of the surface of the analysed isotropic material; moving the infrared heat source and the thermal imaging detector along the surface of the isotropic analysed and reference material at constant speed on a curved path; wherein with the beginning of movement, radiant temperature is measured at the centre of the surface each reference material with known thermophysical properties; radiant temperature is then measured on the surface of the analysed isotropic material at all points of the spatial grid of the surface of the analysed isotropic material; applying a differential model using implicit schemes; solving an optimisation parametric problem for the analysed isotropic material at each point of spatial resolution according to the image pattern; determining, from the minimum closing error, unknown estimates for each point of spatial distribution of thermophysical properties of the analysed isotropic object.

EFFECT: high accuracy of obtained data.

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