Optical inspection device for the inner surface of pipe ends

Basing on the structural lighting method, we develop a contactless system of the alignment control for weapon barrels. We propose and design a construction of a compact optical sound using a diffraction optical element to expose the barrel bore. We provide processing algorithms for images obtained under the scanning of the barrel bore; then, using these algorithms, we restore the 3
 $$D$$
 -shape of the controlled item and compute the required geometric parameters. We provide test results of the alignment control system on samples of real products.

Light Section Method of Alignment Control for Weapon Barrels

The article discusses the development of a non-contact straightness inspection system of the rifled guns channels based on the structured light method. A compact optical probe has been developed, in which a diffractive optical element (DOE) is used to illuminate the bore. Algorithms for processing a series of images obtained by scanning a bore are proposed and developed. In the issue of image processing 3D form of the controlled product is reconstructed. The test results of the straightness inspection system on real samples are presented. As a result of the tests, the error of measurements of straightness deviations at the level of ± 4 microns was obtained.

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K I Savinov

Papers

Using diffractive optical elements for industrial products geometrical parameters inspection

High Precision Measurements of Thermal Deformations of Spacecraft Reflectors