Research on the Measurement Method of Oblique Incidence Velocity of Projectile with Double N-type Six-screen Array

TAN Linqiu; WANG Jia; ZHANG Hang; YANG Shuai; ZHANG Zhixuan; DONG Tao

doi:10.15892/j.cnki.djzdxb.2023.02.004

Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 2: 20 - 25

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.02.004

Research on the Measurement Method of Oblique Incidence Velocity of Projectile with Double N-type Six-screen Array

TAN Linqiu ¹ ,
WANG Jia ¹^,² ,
ZHANG Hang ¹ ,
YANG Shuai ¹ ,
ZHANG Zhixuan ¹ ,
DONG Tao ¹

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¹ School of Opto-electronical Engineering, Xi’an Technological University, Xi’an 710021, Shaanxi,China
² Science and Technology on Electromechanical Dynamic Control Laboratory, Xi’an Institute of Electromechanical Information Technology, Xi’an 710065, Shaanxi,China

Received date: 2022-11-04

Online published: 2025-02-24

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Abstract

Aiming at the requirement of projectile velocity measurement under oblique incidence conditions such as gun barrel elevation shooting, projectile strafing, and ballistic flight at the end of the projectile, a dual N-type six-light curtains sky-screen target projectile oblique incidence velocity measurement scheme is proposed. The main detector of the system, two sets of three-light curtains sky-screen target forms six detection light curtains in the predetermined ballistic space through the N-type slit diaphragm and optical lens. When the projectile enters at a certain angle and passes through the six detection light curtains in turn, the six sets of signal processing circuits corresponding to the six detection light curtains output six projectile signals in turn, The six-channel projectile signals are collected and processed by the data acquisition instrument, and the time value of the projectile passing through the six detection light curtains is obtained. Furthermore, combined with the structural parameters of the light curtain of the system, the flight velocity and the direction of velocity flight of the projectile are finally calculated. The measurement error of the system velocity is analyzed and simulated, and the velocity measurement accuracy of the system is verified to be not greater than 1.1‰ through the live ammunition test.

Key words： sky screen; six-light-screen; projectile velocity; exterior ballistic test

Cite this article

TAN Linqiu , WANG Jia , ZHANG Hang , YANG Shuai , ZHANG Zhixuan , DONG Tao . Research on the Measurement Method of Oblique Incidence Velocity of Projectile with Double N-type Six-screen Array[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(2) : 20 -25 . DOI: 10.15892/j.cnki.djzdxb.2023.02.004

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