A photoelectric composite fragment group position testing device and testing method

Abstract

The invention provides a photoelectric composite type fragment group position testing device and testing method, wherein the testing device includes a testing device main body, a signal acquisition instrument and a host computer, wherein the testing device main body is along the direction of fragment flying and is a certain distance from the explosion point of the warhead It is set at a distance, and also includes a detection light curtain unit and a film array test unit, wherein the detection light curtain unit includes two lasers and three photodetector arrays, and the lasers and photoelectric detection arrays correspond to form a light curtain and serve as a double-line laser The intersecting first test target surface, the thin film array test unit is arranged in the middle of the main body of the test device and has a second test target surface. The laser and film array photoelectric composite method of the invention can test the scattered position of the fragment group of the directional warhead, and provide reliable data support for the research on the directional control technology of the fragment group.

Description

technical field [0001] The invention relates to the technical field of photoelectric testing, in particular to a photoelectric composite fragment group position testing device and testing method. Background technique [0002] Fragmentation is one of the important factors of warhead damage effect, and the number and position of fragments in a designated area is one of the important parameters to measure the damage effect of fragmentation warhead. It is necessary to test the fragment position distribution of the fragment warhead in the designated area. At present, commonly used measurement equipment can be divided into contact measurement and non-contact measurement. The main test equipment includes paper target board measurement method, multi-light curtain intersection measurement method, double CCD intersection measurement method, acoustic target, etc., all of which can only test In the case of a single target at the same time, when multiple targets are simultaneously targe...

AI Technical Summary

Problems solved by technology

At present, commonly used measurement equipment can be divided into contact measurement and non-contact measurement. The main test equipment includes paper target board measurement method, multi-light curtain intersection measurement method, double CCD intersection measurement method, acoustic target, etc., all of which can only test In the case of a single target at the same time, when multiple targets are simultaneously targeted, a large number of false targets will be obtained, resulting in the fact that the existing test methods cannot be used for the position distribution test of multiple targets simultaneously. The problem is the weapon parameter One of the recognized technical problems in the testing industry

[0003] In view of the situation where two projectiles hit the target at the same time, some researchers proposed to use seven detection light curtain arrays to measure the projectile landing coordinates of the double-barreled weapon. The device and algorithm are complicated and difficult to realize in actual engineering.

Some researchers proposed to use the measurement principle based on six light curtains, subdivide each light curtain into multiple small light curtains, and realize the measurement of coordinates when two projectiles hit the target at the same time. This method has complex composition of light curtains. When two projectiles hit the target at the same time and the target position is in the same light curtain area, the system also cannot distinguish, which eventually leads to the inability to measure

[0004] Existing patents also propose some coordinate measurement methods for simultaneous landing of multiple targets, but there are certain problems. For example, the patent "Measurement Method and Device for the Flight Velocity and Target Coordinates of Double-barreled Salvo Weapon Projectiles" proposes to use eight detection light The method of curtain array is used to measure the target coordinates of the projectile of the double-barreled weapon. The system device and algorithm are complicated, and it is difficult to realize in actual engineering.

For example, the patent "Multi-tube salvo weapon projectile velocity and target coordinate measurement device and measurement method" proposes to adopt the measurement principle based on six light curtains, and divide each light curtain into multiple small light curtains, so as to realize the simultaneous landing of multiple projectiles. For the measurement of coordinates in the case of a target, the composition of the light curtain in this method is complex, and engineering implementation is difficult. When two projectiles hit the target at the same time and the target position is in the same light curtain interval, the system is also unable to distinguish, which eventually leads to the inability to measure

The patent "Coordinate Measuring Device and Measuring Method for Simultaneous Targeting of 2-3 Projectiles" proposes a measuring device and method based on a high-speed color line array CCD camera combined with a line laser light source. The high-speed line array used in this scheme The color camera is expensive and depends on imports, so the price of the system is relatively expensive, and this method cannot be used for the situation where 4 or more projectiles hit the target at the same time

For example, the patent "a laser multi-target vertical target measurement device and measurement method" proposes to use multiple sets of line lasers and photoelectric detection arrays to form a detection target surface. If there are N targets at the same time, N+1 sets of line lasers and photoelectric detection arrays are required. The photodetector array, as the number of simultaneously arriving targets to be tested increases and the thickness of the target surface increases, making it impossible to test small targets, for example, the test of fragment groups cannot be used

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