FIELD: measuring technology.
SUBSTANCE: invention is intended to determine the diffusion coefficient of moisture in capillary-porous materials. The method for determining the moisture diffusion coefficient in capillary-porous materials includes placing the tested capillary-porous material between two environments with different relative humidity, determining the current value of the moisture flux density passing through the capillary-porous material, determining the humidity on both surfaces of the capillary-porous material, through which the moisture flow passes, followed by determination of the diffusion coefficient of the capillary-porous material K, while the humidity on the surfaces of the capillary-porous material is determined by relative humidity and temperature of the medium in micro-volumes directly adjacent to each surface of the capillary-porous material.
EFFECT: minimization of the error in determining the diffusion coefficient of capillary-porous material.
1 cl, 2 dwg
