A Displacement Sensor-Based Test Method for Gun Projectile Jamming Attitude

Abstract

The invention discloses a method for testing the posture of an artillery projectile blocking a barrel based on a displacement sensor. The method comprises building a test device of the posture of an artillery projectile blocking a barrel based on a displacement sensor, arranging four marker points at the end surface of the tail of the artillery projectile, arranging two rings of marker points in parallel on the inner wall of a barrel, wherein each ring of the marker points comprises four points, based on a test system coordinate system, acquiring coordinates of the four marker points on the end surface of the tail of the artillery projectile, coordinates of the eight marker points on the inner wall of the barrel, unit vector coordinates along a gravity direction, unit vector coordinates along a gravity direction based on barrel coordinates and projectile inlet depth, transforming the above coordinates, calculating a transition matrix between the test system coordinate system and a barrel coordinate system, and based on the barrel coordinate system, calculating a blocking angle, a yaw angle and a pitch angle of the axis of the projectile and the axis of the barrel and the projectile inlet depth. The method solves the problem that the existing measurement method needs projectile modification, has a low test precision and complex processes and realizes the non-destructive measurement of the posture of an artillery projectile blocking a barrel.

Description

technical field [0001] The invention belongs to the field of electronic testing, and in particular relates to a displacement sensor-based test method for the jamming attitude of artillery projectiles. Background technique [0002] The gun projectile jamming attitude test device is used to measure the horizontal angle and pitch angle of the projectile axis in the barrel chamber after the gun is jammed. It overcomes the error introduced by the traditional jamming parameter measurement method to the projectile modification, which is of great significance to the artillery design. [0003] Chinese patent 201210157545.4 discloses a method and instrument for measuring the axis of the supporting wheel and the axis of the cylinder of a dynamic rotary kiln. The device is installed on the outer wall of the cylinder, which requires high machining accuracy. It is not suitable for measuring the axis of the cylinder with complex outer wall contours such as barrels and many interface sizes....

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a displacement sensor-based method for testing the stuck attitude of artillery projectiles, which is used to test the stuck attitude of artillery projectiles, and solves the problems that the existing measurement methods need to modify the projectiles, the test accuracy is not high, and the test process is cumbersome. problem, realized the non-destructive measurement of projectile jamming attitude

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