Light spot tracker optical axis calibration device based on precise angle measurement
A technology of spot tracking and precise angle measurement, which is applied in the direction of determining the optical axis, testing the optical performance, determining the position of the lens, etc.
Active Publication Date: 2021-06-18
西安应用光学研究所
View PDF10 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The American AH-64 Apache helicopter and A / OA-10 fixed-wing aircraft were equipped with spot trackers as early as ten years ago, but this research direction in China is still in the scientific research stage, and the main technical obstacle lies in the adjustment of spot trackers. The school lacks accurate testing methods
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] figure 1 Shown is a schematic diagram of the coherence principle of a four-quadrant detector and four amplifiers for evaluating a spot tracker. First fix the multi-band laser 7, the optical transceiver fixture 2, the four-quadrant detector 3, the sampling oscilloscope 5, and the detector fixture 6 on the precision optical platform 8; The diameter of the laser beam is aimed at the four quadrants of the four-quadrant detector 3, the four-quadrant detector 3 converts the optical signal into an electrical signal, the standard amplifier 4 amplifies the electrical signal to the extent that meets the post-processing requirements, and the sampling oscilloscope 5 detects the four quadrants output voltage. This process u...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a light spot tracker optical axis calibration device based on precise angle measurement, which comprises a multiband laser, an integrating sphere and a collimator. The device is placed on a precise optical platform, an emission port of the multiband laser is aligned with an incident port of the integrating sphere, a small hole containing ground glass of the collimator is aligned with an emergent port of the integrating sphere, the collimator outputs parallel light, and laser echoes of an irradiated target are simulated in a battlefield environment; a light spot tracker is placed on the electric precise adjustment table, and the electric precise adjustment table is adjusted to enable the light spot tracker to be consistent with the laser optical axis; the electric precise adjustment table is placed on the precise optical platform; and a console is used for driving and quantitatively adjusting the horizontal and pitching angles of the electric precise adjustment table, recording the azimuth and pitching deflection angle quantity of the four-quadrant detection assembly, comparing the azimuth and pitching deflection angle quantity with theoretical values, and calibrating to finally finish the calibration of the positioning information of the light spot tracker. The device is high in calibration precision and wide in application range.
Description
technical field [0001] The invention belongs to the technical field of photoelectric detection, and relates to an optical axis calibration device of a spot tracker based on precise angle measurement. Background technique [0002] The spot tracker is a laser receiving system, which is used to receive the diffuse reflection echo of the laser indicating the target from the illuminator. When the laser echo enters the receiving field of view of the spot tracker, it is processed by the analog circuit and collected and calculated by the digital circuit to give the target The azimuth and elevation information, and then project the symbol with the information onto a sight or display, and through superposition with the background image, the position of the irradiated target can be intuitively observed on the image. The American AH-64 Apache helicopter and A / OA-10 fixed-wing aircraft were equipped with spot trackers as early as ten years ago, but this research direction in China is sti...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/0221
Inventor 马世伟高玮张佳韩耀锋陈文建侯风乾郭俊超武强吕祥毕博瑞刘芳段园园谷衡李龙骧
Owner 西安应用光学研究所