Thermal Diffusivity Tests

DESCRIPTION

Angstrom’s method is an effective approach for one-dimensional thermal diffusivity measurements. The main advantage of the method is simplicity and robustness. The method does not require accurate quantification of Joule heating into the sample, thermal resistance between the instrument and the sample, or heat loss to the surroundings. Our approach employs the following methods:

• Lopze-Baeza et al.’s physical model and IR thermography for temperature detection.
• Forced convection to obtain relatively uniform convective heat transfer coefficient, as well as to reduce random temperature drift from the ambient environment.
• Bayesian framework for uncertainty quantification and demonstrated benefits of the datarich IR thermography.