A laser emission correction system and method for optical-mechanical structure deformation compensation

A technology of laser emission and structural deformation, which is used in the control of using feedback, training matching parts, attacking equipment, etc.

Active Publication Date: 2021-08-13
NO 717 INST CHINA MARINE HEAVY IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a laser emission correction system and method for optical-mechanical structure deformation compensation, and solves the problem of lack of compensation for convergence characteristic changes brought about by the optical-mechanical structure in the prior art

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  • A laser emission correction system and method for optical-mechanical structure deformation compensation
  • A laser emission correction system and method for optical-mechanical structure deformation compensation

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Embodiment 1

[0037] Such as figure 1 Shown is a structural schematic diagram of an embodiment of a laser emission correction system for optical-mechanical structure deformation compensation provided by the present invention, figure 1 In , the solid line with arrows indicates the laser optical path, the dotted line with arrows indicates the target imaging optical path, and the dotted line with arrows is the signal line. figure 1 It can be seen that the system includes: a laser characteristic monitoring unit 1 , an optical path unit, a laser 7 and a control system 9 .

[0038] The optical path unit includes a beam splitter unit 3 and a laser adjustment unit; part of the laser light emitted by the laser 7 passes through the beam splitter unit 3 and is emitted, and the other part enters the laser characteristic monitoring unit 1, and the laser characteristic monitoring unit 1 determines the spot centroid position and spot of the laser in real time size.

[0039] Preferably, the beam splitter...

Embodiment 2

[0055] Embodiment 2 provided by the present invention is an embodiment of a laser emission correction method for optical-mechanical structure deformation compensation provided by the present invention. The correction method is based on a correction system provided by the above-mentioned embodiments, such as figure 2 Shown is a flow chart of an embodiment of a laser emission correction method for optical-mechanical structure deformation compensation provided by the present invention, which consists of figure 2 As can be seen, embodiments of the correction method include:

[0056] Step 1, image the target video, and use the target tracking algorithm to extract the target position.

[0057] In step 2, the laser characteristic monitoring unit 1 calculates the spot centroid position and spot size of the laser entering through the beam splitter unit 3 .

[0058] Step 3, the control system 9 compares the centroid position and spot size of the laser spot with the initial set value,...

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Abstract

The invention relates to a laser emission correction system and method for compensation of optical-mechanical structure deformation. The system includes: a laser characteristic monitoring unit, an optical path unit, a laser, and a control system; the optical path unit includes a beam splitter unit and a laser adjustment unit; the laser emits Part of the laser beam is emitted after passing through the beam splitter unit, and the other part enters the laser characteristic monitoring unit. The laser characteristic monitoring unit determines the centroid position and spot size of the laser spot in real time; the control system compares the centroid position and spot size of the laser spot with the initial set value For comparison, the optical axis and position of the laser are adjusted in real time through the laser adjustment unit. Aiming at the performance degradation of the convergence characteristics of the laser emission system caused by the deformation of the optical-mechanical structure, by real-time detection of the state of the emitted laser, compensation is made from two aspects of the beam divergence angle and the optical axis, and the target power of the high-energy laser is effectively improved when hitting the target. Reduce the influence of temperature, external vibration and other factors on the laser focusing characteristics.

Description

technical field [0001] The invention relates to the field of light beam control, in particular to a laser emission correction system and method for optical-mechanical structure deformation compensation. Background technique [0002] The damage efficiency of laser weapons is affected by factors such as laser energy and far-field spot characteristics. When the quality of the laser light source is constant, the far-field spot characteristics are mainly related to the convergence characteristics of the optical emission system, specifically expressed as the spot diameter and the position of the optical axis of the spot. Due to the complex optical path of the optical launch system of laser weapons, the optical-mechanical structure is easily affected by factors such as temperature, vibration, and stress release, resulting in deviations between the laser optical axis and the video tracking optical axis. On the other hand, the gap between the laser and the launch system The change of...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G05D3/12F41A33/02
CPCF41A33/02G05D3/12
Inventor李子龙张健吴宗慧洪源程鑫
OwnerNO 717 INST CHINA MARINE HEAVY IND GRP