In Search of Early Time: An Original Approach in the Thermographic Identification of Thermophysical Properties and Defects

Table 1

Present method result and comparison to Parker’s and Degiovanni’s methods.

		Sample		Identified diffusivity (m^2 s^−1) × 10^7
Material	Test number
		Thickness (mm)	𝑅/𝐿	Parker’s method	Degiovanni [5]			Degiovanni [6]	Balageas [4]
					𝜅2/3	𝜅1/2	𝜅1/3
Plaster	#1	9.96	1.206	4.759	3.675	3.703	3.689	3.69	3.703
Plaster	#2	9.96	1.206	4.734	3.618	3.644	3.645	3.64	3.648
Chalk	#3	6.16	1.950	3.548	2.861	2.881	2.886	2.89	2.905