A complementary laser vertical target parameter testing device and testing method

Abstract

The invention relates to a complementary type laser vertical target parameter test apparatus and test method. The test apparatus comprises a complementary type laser vertical target apparatus, a signal acquisition and processing instrument and a host computer, wherein the complementary type laser vertical target apparatus is connected with the signal acquisition and processing instrument and is configured to transmit detection signals, the complementary type laser vertical target apparatus is internally provided with a laser emission unit and a photoelectric detection unit, and in the complementary type laser vertical target apparatus, a laser beam is emitted through the laser emission unit and is received through the photoelectric detection unit so that a complementary type laser detection surface is formed. The apparatus and method are applied to small-aperture object impact coordinate measurement, can obtain such parameters of an object as impact coordinates, impact speed, flight direction angle and the like, satisfy test precision requirements of a target range and also improve the sensitivity of a test system and the object capture rate.

Description

technical field [0001] The invention relates to the field of photoelectric testing of shooting ranges, in particular to a complementary laser vertical target parameter testing device and testing method. Background technique [0002] In the development and production process of guns and ammunition, the target flight dynamic parameters are the core parameters of weapon performance verification, mainly including target flight speed, position, azimuth angle, etc. At present, for the measurement of flight target parameters, there are mainly physical target plate measurement, multi-light curtain intersection measurement method, and double CCD intersection measurement method. The target board method is to erect a wooden board target at the position specified by the ballistic trajectory according to the requirements of the test regulations. After a set of design is completed, the position of the single hole on the target board is measured manually. Although the target plate method ...

AI Technical Summary

Problems solved by technology

The four light curtain intersection test system is to use light curtain target or sky curtain target to form four light curtains at specific positions and angles. When the target passes through the light curtain, the data timing collector will capture the target passing through the four light curtains. The time value of the light curtain is the time value. According to the four time values ​​and the space position of the light curtain, the spatial position coordinates of the target passing through the light curtain target can be calculated. This method requires that the target should be perpendicular to the target surface. When the target does not pass through the target surface vertically , there is a large error between the measured value and the actual value

The six-light-curtain intersection measuring system is based on the original four-light-curtain intersection-standing target, by adding two light curtains to realize the speed and space vector angle of the obliquely entering light-curtain target, the system successfully solves the four-light-curtain intersection and vertical target. The target test system has the defect of inaccurate measurement of the target position and speed of the target oblique incident light curtain, but the six-light-curtain intersection test system still has a complex structure and cumbersome angle calibration, and for the six-canopy test system that forms a sky-curtain target, The number of detection lenses required is large. When the field of view is large, the thickness of the light curtain becomes wider, and the detection sensitivity has a large attenuation.

The CCD intersection vertical target measurement system is a non-contact measurement technology. The test system needs a certain light source to meet the detection requirements, and the accuracy of the CCD intersection vertical target measurement system is relatively high when the target surface is small, but for high-altitude large target surface During the measurement, the two CCD cameras need to be arranged relatively far to meet the requirements of the target surface of the test system. At the same time, it is difficult to arrange the two CCDs on the same plane, which brings a large error to the test system. In addition, this test method cannot be used simultaneously. Give the direction angle and speed of the target flight

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