MODE OF NONDESTRUCTIVE CONTROL OF HEAT-TRANSFER PROPERTIES OF MATERIALS AND ARTICLES

摘要

FIELD: the invention refers to methods of measuring technique.;SUBSTANCE: the mode includes thermal influence with the linear heater of a hot probe on the surface of an investigated object and registration of preliminary test thermogram according to which the thermal conductivity of the investigated object or difference of average integral temperatures is estimated, the time of achieving of the set thermal regime τ*_set is fixed and optimal quantity of thermal impulses n*, directed on the investigated object till beginning of the established thermal regime are defined. The measurements on definition of heat-transfer properties of materials with predictable error are made.;EFFECT: increases efficiency and accuracy of nondestructive control.;9 cl, 1 tbl