Light Section Method of Alignment Control for Weapon Barrels

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.