X-ray-based muzzle initial velocity measuring device

Abstract

The present invention relates to an X-ray-based muzzle initial velocity measurement device. The device comprises a triggering unit, an X-ray generating device, an X-ray detection and acquisition unit and a data analysis processing module; when a projectile passes through an X-ray narrow light curtain, the current of detectors changes; after passing through a conditioning circuit, signals, on one hand, are transmitted to a timer, so that the timer can record shielding time, on the other hand, the waveforms of the signals are displayed on a waveform display module; by means of digital image processing, an angle between the connection line of the falling edge of a first path of signals and the falling edge of the last path of signals and a vertical line, namely, the deviation angle of the projectile at a muzzle can be measured; and an X-ray single-light screen test method is adopted to calculate the initial velocity of the projectile at the muzzle. With the device of the invention adopted, the initial velocity of the projectile at the muzzle under strong electromagnetic interference and strong muzzle flame conditions which cannot be measured by a traditional method can be accurately measured; and the single-light screen measurement method can assist in eliminating inconsistencies in multi-light curtain processing speed and delay and errors caused by incapability of realizing completely parallel multi-light curtain beams, and the single-light screen measurement method has high test accuracy.

Description

technical field [0001] The invention belongs to the field of precision test and measurement, in particular to an X-ray-based muzzle velocity measuring device. Background technique [0002] The measurement of projectile initial velocity is one of the most basic range tests of artillery, and also one of the basic parameters to characterize the performance of artillery. The initial velocity of the projectile is an important parameter to test the energy distribution of the artillery. It is the original parameter for the design of the gun body and the anti-recoil device. It can identify the pros and cons of the launch system and its life. In addition, the muzzle velocity also has a great influence on the accuracy of the artillery, and its accurate measurement can effectively repair the deviation. [0003] At present, the methods for measuring projectile velocity mainly include chronometer velocity measurement method, radar velocity measurement method, photographic method and mec...

AI Technical Summary

Problems solved by technology

[0004] The high-speed exit of the projectile from the muzzle is accompanied by a large amount of muzzle flame and plasma flow, which has a great impact on the measurement accuracy of existing measuring instruments. The existing measurement methods cannot measure the actual velocity of the muzzle, and the mechanical effects of gunpowder gas will also damage the and interfere with conventional measuring instruments

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