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Four-screen accuracy target structure assembling and parameter measuring method

A technology of parameter measurement and four light curtains, which is applied in the field of projectile shooting density measurement device adjustment, structure adjustment and parameter measurement of four light curtain precision targets, can solve the problem of large measurement error, and achieve relaxation of processing and installation accuracy required effect

Inactive Publication Date: 2013-06-19
XIAN TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a structure adjustment and parameter measurement method of a four-light-curtain precision target to overcome the problem of large measurement errors caused by inaccurate structural parameters in the installation and actual use of the existing four-light-curtain precision target

Method used

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  • Four-screen accuracy target structure assembling and parameter measuring method
  • Four-screen accuracy target structure assembling and parameter measuring method
  • Four-screen accuracy target structure assembling and parameter measuring method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0022] Example 1: The four-light curtain precision target structure adjustment and parameter measurement method provided by the present invention adopts a laser level to construct a virtual reference, installs a laser aiming device 9 in the transmitting device 7 and receiving device 8 of each light curtain target, and uses the method of measuring the geometric length The method to adjust the angle between the parallelism and the screen surface, the specific steps are as follows:

[0023] (1) see image 3 Aiming lasers 9 are respectively installed at the upper and lower ends of the light curtain target emitting device 7 forming the light curtain and the receiving device 8. The light beam sent by the laser device 9 is a straight line, and its cross section is approximately a circle. By adjusting the fixed parts 5 at both ends, the The light spots emitted by the aiming lasers 9 corresponding to the transmitting device 7 and the receiving device 8 coincide with each other, ensur...

Embodiment 2

[0030] Example 2: The four-light curtain precision target structure adjustment and parameter measurement method provided by the present invention adopts a laser level to construct a virtual reference, installs a laser aiming device 9 in the transmitting device 7 and receiving device 8 of each light curtain target, and uses the method of measuring the geometric length The method to adjust the angle between the parallelism and the screen surface, the specific steps are as follows:

[0031] (1) see image 3 Aiming lasers 9 are respectively installed at the upper and lower ends of the light curtain target emitting device 7 forming the light curtain and the receiving device 8. The light beam sent by the laser device 9 is a straight line, and its cross section is approximately a circle. By adjusting the fixed parts 5 at both ends, the The light spots emitted by the aiming lasers 9 corresponding to the transmitting device 7 and the receiving device 8 coincide with each other, ensur...

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Abstract

The invention relates to a four-screen accuracy target structure assembling and parameter measuring method, aiming at solving the problem of large measured error due to inaccurate structure parameters in assembly and practical use of the conventional four-screen accuracy target. The method adopts a technical scheme comprising the following steps of: (1) adjusting a laser sight of a transmitting and receiving device to ensure speckles of the laser sight are superposed; (2) adjusting to ensure that a light screen I, a light screen II and a light screen IV are vertical to the plane, and the light screen I is parallel to the light screen IV; and (3) adjusting the light screen I and the light screen II to measure an angle alpha related to X, and adjusting the light screen I and a light screen III to measure an angle beta related to Y. By adopting the method, a virtual reference plane is constructed by adopting two laser levels, reference or three mutually-vertical external reference planescan be prevented from being set or constructed on a mechanical structure, namely a hexahedral support structure, so that the requirement for processing and assembling accuracy of the hexahedral support structure is relaxed. The measured structure parameters are accurate by adopting the method, so that measurement errors are avoided.

Description

technical field [0001] The invention belongs to the technical field of ballistic parameter testing outside the shooting range, and mainly relates to an adjustment method of a projectile shooting density measurement device, in particular to a structure adjustment and parameter measurement method of a four-light curtain precision target. Background technique [0002] Standing target shooting density is an important indicator to measure the performance of low-elongation ballistic weapons. The traditional density measurement mostly adopts contact measurement. Materials such as wood board, cardboard or textile cloth are vertically erected at the predetermined measurement position along the ballistic trajectory. A target, The weapon being evaluated shoots at the target, and the accuracy of the weapon is judged by manually measuring the position of the bullet hole on the target. This method has low measurement accuracy, manual operation, time-consuming and labor-intensive, and has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41J5/02
Inventor 安莹倪晋平冯斌高芬鲁倩武志超孟祥众
Owner XIAN TECH UNIV