Method and a station for measuring thermal diffusivity, preferably of polymer materials

摘要

the measurement method dyfuzyjności heat especially polymeric materials by termografii activewhich heats up one surface samples in the form of a block or a cylindrical prostopadłościennej and simultaneously recorded temperature changes on the surface opposite to the surface in timenagrzewanej and on the basis of the graph of the temperature changes in time and thickness of samples shall be known dyfuzyjność thermal material is,one of the surface of the test sample (9) warmed up with hot steam (v) under pressurewho is targeted by the nozzle exit (3) for nagrzewaną surface samples (9) to obtain temperature inducement as impulse and, at the same time, made contactlessj registration temperature changes in time on the surface of the sample (9) opposite to its surface nagrzewanej and on the basis of the graph of the temperature changes during a dyfuzyjność youeplną material using the known relationship.position measuring method termografii polymeric materials dyfuzyjności heat especially active, consisting of anchorages system sampleheating system and thermal cameras is such that is made up of device (1) producing a hot steam (v) under pressure in the range from 2 to 20 bar.preferably in the range from 5 to 15 bar combined with a valve (2) regulated by implementing module (5), preferably electric engine and panting nozzle (3) hot water vapour (v),the nozzle (3) between the panting, a carrier (8) of the sample (9) are located symmetrically two movable diaphragm (4),which are moved by the executive module (6) preferably linear propulsion.