Research on Detection Sensitivity Distribution Regularity of Lens-light-screen

doi:10.3969/j.issn.1000-1093.2016.02.019

Abstract

Abstract: In order to meet the testing requirement of indoor optical target with large detection area, two patterns of lens-light-screen’s engineering realization method are studied, of which one is sector lens-light-screen, and the other is rectangle lens-light-screen. The working principle of each kind of lens-light-screen is analyzed. The luminous flux may be changed when a flying projectile goes through the lens-light-screen in different position, of which the corresponding formulas are deduced based on the photometry principle. The sensitivity distribution regularity of each kind of lens-light-screen is simulated using Matlab. It is verified by the firing tests of air gun bullets. The results show that the signal amplitude of the projectile collected by an oscilloscope is in conformity with the sensitivity simulation results, which provides a reference for the engineering design of the optical targets with lager detection area.

Key words: ordnance science and technology, external trajectory parameter measurement, photometry, light-screen array, lens-light-screen, detection sensitivity

CLC Number:

TJ012.3⁺6

TIAN Hui, NI Jin-ping, JIAO Ming-xing, HU Xun, GAO Fen. Research on Detection Sensitivity Distribution Regularity of Lens-light-screen[J]. Acta Armamentarii, 2016, 37(2): 325-331.

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