All-weather speed-measuring sky screen target

A sky-screen target, all-weather technology, applied to targets, reflective targets, offensive equipment, etc., can solve the problems of high cost of auxiliary light sources, complicated target placement work, and sky brightness effects, etc., to achieve convenient and fast layout, simple target placement, and efficiency. improved effect

Inactive Publication Date: 2011-01-12
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the outdoor use of the sky screen target is affected by the brightness of the sky, the problem of the high cost of additional auxiliary light sources, the existence of the auxiliary light source and the problem that it may be hit by projectiles, and the position of the auxiliary light source is required to be accurate when setting the target. It also makes the whole target layout work complicated and difficult

Method used

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  • All-weather speed-measuring sky screen target
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  • All-weather speed-measuring sky screen target

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: see figure 1 , the present invention is an all-weather speed measuring sky screen target, comprising: a box-type sky screen target detection target body 1 equipped with a lens group forming a sky screen, a timer or a data acquisition device, a dedicated processing circuit 5, and a lens group including: an optical Lens 7, slit diaphragm, photodetector device 6; special processing circuit 5 is installed in the sky curtain target detection target box body, and the all-weather speed measuring sky curtain target of the present invention also includes: reflective film body 3, and reflective film body 3 is in the sky curtain target detection Directly above the target body, a word-line structured light laser 2 is respectively installed on both sides of the lens group of the box-type sky curtain target detection target body 1, and the word-line structured light laser 2 is also the auxiliary light source of the present invention. Usually, whether it is a sky curtain ...

Embodiment 2

[0031] Embodiment 2: overall composition is the same as embodiment 1, see figure 1 , the reflective film body 3 adopts a strip-shaped arc-shaped original reflective film, which is fixed and installed by the reflective film support frame 4 fixed on the outside of the sky curtain target detection target body 1. The top of the reflective film support frame 4 has an arc-shaped support, and the strip-shaped arc The shape-oriented reflective film is arc-shaped across the sky curtain target detection target body 1 along the length direction and installed on the support frame 4, and the support frame 4 is a support frame whose installation height and width can be adjusted. The width of the strip-shaped arc-shaped original reflective film is greater than the thickness of the canopy 9 section at the installation position of the reflective film, and its length is the arc length required to cover the field of view of the canopy target as the minimum arc length. In this example, because the...

Embodiment 3

[0035] Embodiment 3: the main body constitutes the same as embodiment 1, and the reflective film body 3 is a pill-shaped reflective film body, see Figure 5 , the specific reflective film body 3 is the projectile that has been tested. Generally, the material of the shell of the projectile is metal. Since metal has a high light reflectivity, when the projectile is irradiated by laser light, its reflected light enters the detection lens 7. It is strong enough to cause a detector to respond. The in-phase amplifying circuit in the post-stage amplifying circuit of the dedicated processing circuit 5 is used to control the in-phase signal generated by the projectile passing the target as a reflecting film. In this case, there is no need to add a support frame 4 and an ortho-reflection film, which further simplifies the composition of the measurement system, further simplifies the complex target placement process, makes the sky screen target work all-weather, and makes the system more...

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Abstract

The invention discloses an all-weather speed-measuring sky screen target which is characterized in that horizontal straight line structured light lasers are arranged at both sides of a detection target body of a box type sky screen target of the traditional lens group; and a generated fan-shaped shiny surface and a sky screen generated by the lens group are on a same plane. In the invention, the horizontal straight line structured light lasers as auxiliary light sources are fixedly arranged on the detection target body so as to be used as a light source; the light screen position of the sky screen target is also indicated; the reflected light of a reflecting film body on lasers is enabled to enter a detection lens by utilizing the reflecting film body positioned right above the detection target body of the sky screen target; light flux generated when a pill passes through the light screen of the sky screen target and a light screen of the lasers is sent to a calculagraph or a data acquisition device through photoelectric conversion and signal processing; and corresponding circuits are designed for different reflecting film bodies. The invention realizes the all-weather testing without being influenced by the change of sky brightness, day and night alternation and the transformation of sunny and rainy weathers, has the advantages of simple cloth target, higher position fault tolerance and low manufacturing cost and realizes the all-weather testing of pill speed.

Description

technical field [0001] The invention belongs to the technical field of shooting range testing, and mainly relates to a canopy target measuring device for measuring the flying speed of projectiles of various calibers by using photoelectric technology, in particular to an outdoor canopy target, in particular to an all-weather speed measuring canopy target. Background technique [0002] In the development and production of guns, cannons, bullets, and propellants, the initial velocity of the projectile is a key parameter that needs to be tested frequently. At present, the more commonly used method in the production calibration shooting range is to form the speed measurement system together with the section device and the time measuring instrument. At present, the intercepting devices commonly used in domestic shooting ranges are coil targets, sky curtain targets and light curtain targets, all of which use the non-contact measurement principle to detect the moment when the projec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41J2/00
Inventor 倪晋平董涛田会宋玉贵
Owner XIAN TECHNOLOGICAL UNIV
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