QUALITY CONTROL OF HOLES IN DETAILS OF POLYMER COMPOSITE MATERIALS

I.P. Vnukov, I.N. Zyanchurina, M.M. Serbov

The article presents data on polymer composite materials use in aircraft building. The analysis of nondestructive quality control methods for holes in parts made from PCM was made. An optical control method is considered as the most suitable for solving the problem of defect detection in through apertures. The principle of G.B. Airy usage was proposed for diffraction pattern observation in circular aperture. The principle is based on an analysis of the signal in the phase space, where informative parameter is the amplitudes ratio of the odd or even derivatives of the measured signal, for an arbitrary current independent variable value.

Key words: polymer composite materials, reach-through hole, an optical instrument, control, spectral ratio, the intensity of radiation, diffraction, diffraction pattern.