Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Measuring system and non-destructive testing method controlling the structural changes in polymeric materials Mainikova N.F. The measuring system (MS) and probe method realizing the non-destructive testing (NDT) of structural changes in polymeric materials are considered. The record of temperature and time response characteristics of phase and relaxation transitions in polymers is carried out according to the changes of the thermo-physical characteristics as the temperature rises. The method is based on the analytic solutions in a set of mathematical models of heat transfer processes in the studied body that is being heated through the small surface area with a flat round heat source of constant power, which is built in the probe.