Light multipoint reflection bullet velocity measurement device and method thereof

Abstract

The invention discloses a light multipoint reflection bullet velocity measurement device and method thereof. One end, which is close to a bullet ejector, of a bullet tube is provided with an excitation light source. The excitation light source points to the axis of the bullet tube and is arranged in a way of inclining to the ejecting outlet direction of the bullet tube. The bullet tube wall body opposite to the excitation light source is provided with multiple light splitting mirrors. The bullet tube internal wall opposite to the light splitting mirrors is provided with multiple light reflecting mirrors, and the light reflecting mirrors and the light splitting mirrors are arranged in a staggered way. The transmitting light of the excitation light source forms multipoint reflection throughthe light splitting mirrors and the light reflecting mirrors. One side of the light splitting mirrors is provided with light sensing elements and timers. The light sensing elements and the timers areelectrically connected with a velocity measurement instrument. According to the light multipoint reflection bullet velocity measurement device and method thereof, the structure is simple and multipoint velocity measurement is adopted so that the error of velocity measurement can be reduced.

Description

technical field [0001] The invention belongs to the field of projectile speed measurement, and in particular relates to a light multi-point reflection type projectile speed measurement device and a method thereof. 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 target, and ca...

AI Technical Summary

Problems solved by technology

However, since the projectile still has acceleration after it is ejected from the bullet tube exit, the initial velocity measured in the test is greater than the actual initial velocity, and there are errors in the measurement, and the whole system has a complex structure, a large footprint, and the parts are easily damaged. Due to the inability to clarify the movement history of the projectile in the bullet tube, the current system cannot meet the test requirements of compact indoor space and low noise level due to the disadvantages of large noise due to the lack of noise reduction facilities

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