PROCEDURE OF NONDESTRUCTIVE TEST OF THERMAL-PHYSICAL CHARACTERISTICS OF MATERIALS

摘要

thermal-physical measurements. SUBSTANCE: heat source in the form of circle is positioned on heat-insulated surface of tested material. Surface of tested material is subjected to action of heat pulses of equal energy fed at moments of onset of specified relation of integral values of temperatures in points of location of temperature-sensitive elements. Heat pulse repetition frequency and temperature in one test point are recorded at moment of termination of heat test and thermal-physical characteristics of tested material are computed on basis of formulas given in description of invention. EFFECT: enhanced accuracy of determination of thermal-physical characteristics thanks to increase of excess temperature in test points. 3 dwg