Alignment device for reflective laser curtain velocity measurement device

Abstract

The invention belongs to the technical field of initial velocity measurement of artilleries and projectiles, and particularly relates to an alignment device for a reflective laser curtain velocity measurement device. The alignment device for the reflective laser curtain velocity measurement device comprises a gun barrel axial laser indicator, two laser curtain plane azimuth indicators and indicator regulation mechanisms, wherein the laser curtain plane azimuth indicators and the indicator regulation mechanisms correspond to two laser curtain systems respectively; a pair of accurate reference plane marks perpendicular to a launching line of a trajectory is established on the spot to provide a reference for the laser curtain alignment and adjustment of the reflective laser curtain velocity measurement device; a target distance measured on the basis of the reference is more accurate, and a laser curtain perpendicular-alignment error and a target distance measurement error are controlled within known ranges.

Description

technical field [0001] The invention belongs to the technical field of artillery projectile initial velocity measurement, and in particular relates to an alignment device for a reflective laser curtain velocity measuring device. Background technique [0002] In the design and production process of artillery and ammunition, the muzzle velocity of shells is one of the important technical indicators. Therefore, muzzle velocity measurement equipment is also a must-installed equipment for the design and production departments of artillery and ammunition. At present, there are many types of muzzle velocity measurement equipment that are routinely used. Among them, those based on the principle of section measurement include: on-off mesh target, coil target, sky screen target, frame laser target and so on. The measurement principle of this type of initial velocity measuring equipment is: under the premise of knowing the target distance, measure the time of the projectile passing the...

AI Technical Summary

Problems solved by technology

[0003] Due to various reasons, the existing initial velocity measurement equipment based on the principle of section measurement basically has the problem that the length error of the on-site target distance is difficult to effectively control; the prerequisite for accurate measurement of the target distance is that the target surface must be perpendicular to the ballistic line before measurement. alignment

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