Patent ID: 8718989
Filing Date: 2014-05-06
Classification: G01K,G01N

Abstract:
1. Method for determining the heat transfer characteristics and the wall thicknesses of a heat conducting body having an internal structure for a flow medium to flow through, comprising: passing through the internal structure of the body a first flow medium having a first temperature; registering a first thermal image of an external surface of the body as a function of time using a pixelised image detector; and using a processor to: process the first thermal image in order to obtain first measured surface temperatures (T predict first surface temperatures (T apply a best fit method (fit) to the first measured surface temperatures (T optimise the first predicted surface temperatures (T wherein the numerical model (M the fit between the first measured surface temperatures (T the absolute surface temperature at a given pixel; the change of temperature from the initial temperature over time; the local derivative of temperature with respect to time or space; the combined local derivative with respect to time and space.