FIELD: process engineering.
SUBSTANCE: glass fibre is introduced in composition used for forming controlled object as a material similar to that used as a filler for forming part carcass matrix, that glass fibre allows channeling light beam there through. Note here that glass fibre intact lengths, longer than said part, are used to be arranged to cross paths of probable defect development in part sections not subjected to processing. Occurrence of defect is detected by light beam passage or decreased in emergent light flux brightness.
EFFECT: efficient detection of defects.
6 cl, 1 dwg
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