METHOD OF COMPLEX MEASUREMENT OF THERMAL DIFFUSIVITY AND HEAT CAPACITY OF SOLID MATERIALS

摘要

The invention relates to physical studies m. On the front surfaces of two flat samples, one of which is known skie thermophysical properties, and the other is investigated, and on their flat surfaces coated with the same coating with an arbitrary emissivity, act simultaneously modulated heat flow equal density energy having a varying frequency modulation, the value of which during the measurement is adjusted independently for each sample. Using independent adjustment allows to provide the optimum mode of simultaneously performing measurements on the two samples, which leads to lower error determining thermal diffusivity to 6% to 12% of the heat capacity. 4 yl. eating