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Large-caliber optical periscopic non-coaxial laser radar three-dimensional scanning device

A technology of laser radar and three-dimensional scanning, which is applied in the directions of measuring devices, electromagnetic wave re-radiation, and utilization of re-radiation, can solve problems such as atmospheric parameter pollution, achieve small detection blind spots, and increase the detection dynamic range.

Inactive Publication Date: 2011-06-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the limitations of the existing three-dimensional spatial distribution detection laser radar scanning device for atmospheric parameters and air pollution, and to provide a large-aperture optical periscope non-coaxial three-dimensional laser radar scanning device

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  • Large-caliber optical periscopic non-coaxial laser radar three-dimensional scanning device
  • Large-caliber optical periscopic non-coaxial laser radar three-dimensional scanning device

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and the present invention will be further described.

[0026] Such as figure 1As shown, a large-aperture optical periscope non-coaxial laser radar three-dimensional scanning device of the present invention consists of three parts: an azimuth scanning mechanism 1 , a pitch scanning mechanism 2 , and a beam translation mechanism 3 . Wherein, the azimuth scanning mechanism 1 includes an azimuth plane reflector 11 and the azimuth rotation box 8; the pitch scan mechanism 2 includes a pitch plane reflector 17 and the pitch rotation box 14; the beam translation mechanism 3 includes two plane reflectors 23, 24 and beam translation box 20.

[0027] The azimuth rotating box 8 is a cubic box of 520 mm × 520 mm × 520 mm, and the bottom plate and the middle part of the right side plate are respectively opened with round holes with a diameter of 430 mm, which are respectively used as the entrance port 9 and the exit port 10 of the azimu...

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Abstract

A large-caliber optical periscopic non-coaxial laser radar three-dimensional scanning device comprises an orientation scanning mechanism, a pitch scanning machine and a beam translation mechanism; theorientation scanning mechanism is arranged above a receiving telescope of the laser radar; an inlet port optical axis and the receiving telescope optical axis are coaxial; furthermore, the two optical axes are coaxial to the rotation axis of the orientation scanning mechanism. The inlet port of the pitch scanning mechanism is connected with the outlet port of an orientation rotation box, the twoports of which have the same calibers; the inlet optical axis of the pitch scanning mechanism and the outlet optical axis of the orientation scanning mechanism are coaxial and the two optical axes thereof are coaxial to the rotation axis of the pitch scanning mechanism. The beam translation box is arranged above the pitch scanning mechanism; the lower panel of the beam translation box is connectedwith the outlet port of the pitch scanning mechanism; and the inlet optical axis of the beam translation box and the outlet optical axis of the pitch scanning mechanism are coaxial. The device leadsthe laser radar to realize the three-dimensional space scanning measurement with a large distance range without increasing the clear aperture of the periscopic three-dimensional scanning system and the receiving telescope and the laser light source do not need to be rotated during the measurement process.

Description

technical field [0001] The invention belongs to the technical field of laser radar in optical engineering, and relates to a three-dimensional scanning device of a non-coaxial laser radar. Background technique [0002] LiDAR technology is currently a research content that is generally valued at home and abroad, and has important application value in the detection of atmospheric parameters and air pollution. Lidar is used to detect atmospheric parameters and air pollution. It has the advantages of large detection range, high precision, good real-time performance, and the ability to obtain three-dimensional spatial distribution data. It has irreplaceable advantages in practical applications. [0003] At present, the use of lidar to detect the three-dimensional spatial distribution of atmospheric parameters and air pollution generally adopts the following two methods: [0004] The first method is the scanning measurement method described in the document "Development of AML-1 Ve...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/481G01S17/95
CPCY02A90/10
Inventor 张寅超陈思颖蓝天倪国强
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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