(A) Front view of the sample with heating wires, insulated tip and an air nozzle below the sample. (B) Side view of the setup. (C) Infrared image of the sample and an oscillatory temperature profile on a representative isotherm (line A). (Rightmost) The PPDFs for thermal diffusivity for different number of amplitude and phase measurements.

Hu, Yuan, and Timothy S. Fisher. “Accurate Thermal Diffusivity Measurements Using a Modified Ångström’s Method With Bayesian Statistics.” Journal of Heat Transfer 142.7 (2020).