Infrared thermography measurement of the thermal parameters (effusivity, diffusivity and conductivity) of materials

Abstract Accurate thermal simulations require the knowledge of both the thermal conductivity and the thermal effusivity of samples materials. Most of the time, the thermal conductivity and the specific heat have to be measured with two different setups. In this paper, we will show that a combination of two experiments done with the same setup - stimulated infrared thermography - allows to measure the absolute value of the thermal diffusivity and to get the relative value of the effusivity or the specific heat, and so to determine independently all the thermal parameters: thermal conductivity, thermal effusivity and thermal diffusivity. Keywords: diffusivityconductivityeffusivityspecific heatinfrared camera