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A fragment or projectile dispersion characteristic testing device

A technology of fragments and projectiles, which is applied in the field of photoelectric detection, can solve the problems of low utilization rate of the effective test target surface and cannot be used indoors, etc., and achieve the effect of fast data processing speed, high utilization rate of the target surface, and compact structure of the device

Active Publication Date: 2022-04-19
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, it will be affected by weather conditions in actual use and cannot be used indoors, and the utilization rate of the effective test target surface formed by intersection is low

Method used

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  • A fragment or projectile dispersion characteristic testing device
  • A fragment or projectile dispersion characteristic testing device
  • A fragment or projectile dispersion characteristic testing device

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Experimental program
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Embodiment 4

[0080] Figure 5 It is a structural block diagram of a system for determining the passing position of fragments or projectiles provided by Embodiment 4 of the present invention. Such as Figure 5 As shown, a fragment or projectile passing target position determination system, the target passing position determination system is used for the target passing image acquisition device described in Embodiment 1 and Embodiment 2, and the target passing position determination system includes:

[0081] The cross-target image acquisition module 401 is configured to acquire the cross-target image collected by the line scan camera.

[0082] The coordinate system establishing module 402 is configured to establish a rectangular coordinate system, the X-axis of the rectangular coordinate system is a straight line where the optical centers of the two line array cameras are located, and the origin of the rectangular coordinate system is the optical center of one of the linear array cameras.

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Abstract

The invention discloses a fragment or projectile passing target image acquisition device, a fragment or projectile passing target position determination method and system, and a fragment or projectile scattering characteristic testing device. The light source adopted in the present invention is a laser light source, without sky brightness as a background, and the device can be used around the clock. At the same time, the fan-shaped light curtain can cover the square target area, the effective target surface utilization rate is high, and the device structure is compact. Furthermore, the present invention adopts laser light curtain original reflection technology, which has high utilization rate of light energy, strong imaging contrast, and can realize ultra-large target surface detection. Moreover, only one image is taken for each trigger target, no continuous shooting is required, the amount of data is small, and the data processing speed is fast.

Description

technical field [0001] The invention relates to the technical field of photoelectric detection, in particular to a device for testing the scattering characteristics of fragments or projectiles. Background technique [0002] In the warhead explosion field, the test method of laying steel plate or steel wire mesh for fragment dispersion characteristics is still used at present. In the field of projectile dispersion testing with large target surfaces, the intersection measurement method of line array cameras using skylight as the background light source is the most common method. The double camera intersects the ground at 45° to form an effective target surface, and the skylight is used as the background light source. When the projectile passes through the effective target surface, the sunlight is blocked to make the luminous flux change, and a dark spot is generated in the camera field of view. The position can be calculated to obtain the information of the projectile passing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41J5/10F42B35/00
CPCF41J5/10F42B35/00
Inventor 赵冬娥张斌马亚云赵辉李沅
Owner ZHONGBEI UNIV
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