Modern Automated System for Evaluation of Movement Velocity of Firearm Bolt

Abstract

The experimental determination of the movement characteristics of automation nodes is extremely important in the design of small arms. In the paper the modern embodiment of an automated system for measuring the velocity of movement of the firearms bolt carrier are presented. A comparative analysis of existing methods and devices for estimating the linear movements of small arms units has been carried out, and their shortcomings have been noted. An estimation of the minimum necessary characteristics of the recording device was made and its choice was made. The structural scheme of the system is presented and the basic principles of its work are described. The created system is similar in many respects to automated systems based on light screens used to estimate speed, ballistic coefficient and other parameters of bullets and projectiles. The form of signals received from photodetectors and recorded by the system is presented. The possibilities of the developed software are described: visualization of signals, obtaining of statistical information on a series of shots, saving of all results to the computer hard disk. The created system makes it possible to determine the average speed of movement of the small arms bolt frame on the length of the measuring base in the forward and backward directions. At the same time, the proposed implementation of the system is characterized by relatively low cost, simplicity and compactness.