Projectile target hitting coordinate testing method based on retro-reflection type laser curtain

A technology of original reflection and testing method, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of complicated installation and debugging, bulky system structure, cumbersome coordinate calculation formulas, etc., to achieve enhanced contrast, improved capture rate, and improved The effect of testing efficiency

Active Publication Date: 2015-05-27
ZHONGBEI UNIV
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Problems solved by technology

[0003] In view of this, in order to overcome the shortcomings of the existing two-line array CCD camera intersection measurement system, the system structure is bulky, the installation and debugging are co

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  • Projectile target hitting coordinate testing method based on retro-reflection type laser curtain
  • Projectile target hitting coordinate testing method based on retro-reflection type laser curtain
  • Projectile target hitting coordinate testing method based on retro-reflection type laser curtain

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[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] The method for measuring the target coordinates of the projectile based on the laser original reflection light curtain of the present invention, such as figure 1 As shown, first build a test system, including laser 1, linear CCD camera 2 and ortho-reflective screen 3: Laser 1 uses a Powell prism for beam expansion, resulting in a divergence angle greater than the field of view of linear CCD camera 2 and a uniform distribution of light intensity The linear laser is projected to the original reflection screen 3 to form a laser light curtain; a linear CCD camera 2 is placed near the laser to receive the laser reflected by the original reflection screen. In order to ensure that the light reflected by the original reflective screen 3 can illuminate the entire lens of the linear CCD camera, the light curtain generated by the laser 1 must be adjusted to...

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Abstract

The invention discloses a projectile target hitting coordinate testing method based on a retro-reflection type laser curtain. A retro-reflector screen and a laser are matched to produce the laser curtain to capture projectiles, the contrast of projectile imaging and the background is enhanced, and the projectile capture rate of a system is greatly increased; according to the testing method, only one laser and one linear array CCD camera are adopted, projectile target hitting coordinates can be obtained by the aid of the distance between two points in each image and parameters of the system, defects that existing double-linear-array CCD camera measuring systems are complex in structure and tedious to adjust, coordinate calculation formulas are complex and the like are overcome, and the testing efficiency is improved.

Description

technical field [0001] The technical field of photoelectric detection of the present invention particularly relates to a method for testing projectile landing coordinates based on a laser original reflective light curtain. Background technique [0002] Shooting accuracy refers to the overall measure of the proximity between the actual passing coordinates of the projectile and the expected hit point, and it is an important indicator for evaluating the performance of weapons. For quite a long time. The traditional contact test method has been adopted in China, that is, a target is set on the section of the ballistic trajectory, and the coordinate position of the bullet hole on the target position is artificially measured to realize the measurement of the coordinates of the projectile passing the target. However, there are many problems in this contact measurement method: first, the resources cannot be reused, and the target needs to be changed after each shooting, which consu...

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Application Information

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IPC IPC(8): G01B11/00
Inventor 张斌赵冬娥刘吉霍晗
Owner ZHONGBEI UNIV
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