THERMOGRAPHIC METHOD OF CONTROL AND MONITORING DEVICE FOR IMPLEMENTING METHOD Russian patent published in 2015 - IPC G01N25/72 

FIELD: testing technology.

SUBSTANCE: invention relates to the field of non-destructive testing and can be used to identify near-surface defects in the test object. According to the claimed thermographic method the surface area of the controlled object is heated, for example, inductively. Then the sequence of thermographic images which are successive with time intervals within the heat transmission phase is recorded. Each thermographic image is a local temperature distribution in the surface area of the controlled object recorded by the thermographic image. Based on the thermographic images the temperature profiles located in the correct awash condition are determined. Each temperature profile located in the correct awash condition refers to the same area of measurement of the controlled object surface. For a plurality position of measurement recorded by the temperature profiles in the measurement area of temperature profiles the process of changing of temperature values over time is determined. They are evaluated by at least one of the evaluation criteria characterizing the heat flow in the area of measurement. Also the thermographic monitoring device is claimed, implementing the said method.

EFFECT: improvement of clarity of separation of actual defects and pseudo-defects.

10 cl, 11 dwg