FIELD: testing equipment.
SUBSTANCE: according to the stated method of active single-sided thermal control of hidden defects in solid bodies, they heat one of the surfaces of the control object during the fixed time by optical radiation of the heating source, and the non-stationary temperature field of this surface is recorded in the form of a sequence of thermograms. Upon completion of heating the residual emission of the heater is closed to eliminate the reflected radiation. Also the heating emission is additionally closed during registration of the reference thermogram at the beginning of heating. Hidden defects are detected by the ratio of two thermograms selected from the recorded sequence of thermograms.
EFFECT: increased validity of defect detection.
2 dwg
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