Device and method for inverting atmospheric visibility by Scheimpflug principle imaging laser radar

A technology of atmospheric visibility and laser radar, applied in the direction of measuring devices, climate sustainability, electromagnetic wave re-radiation, etc., can solve problems such as difficult movement and transportation, limited application range, complex system comparison, etc., to achieve easy movement and transportation , broaden the scope of application, improve the effect of signal-to-noise ratio

Pending Publication Date: 2018-11-16
安徽科创中光科技股份有限公司
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Problems solved by technology

The pulsed backscatter lidar visibility meter directly uses backscatter to detect the visibility, and uses the attenuation slope of the signal to invert the visibility. It has good stability, but the system is relatively complicated, large in size, heavy in weight, difficult to move and transport, and limited its scope of application

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  • Device and method for inverting atmospheric visibility by Scheimpflug principle imaging laser radar
  • Device and method for inverting atmospheric visibility by Scheimpflug principle imaging laser radar

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1~2 , the present invention provides a technical solution:

[0030] A device for retrieving atmospheric visibility by sand-type theorem imaging lidar, including a laser source, a light source shaping structure, a receiving imaging system, and an industrial computer 11,

[0031] The laser source is controlled and connected to the industrial computer 11, and the laser source is connected to the input end of the optical fiber 4 to output the l...

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Abstract

The invention relates to the technical field of atmospheric visibility measurement, in particular to a device and a method for inverting atmospheric visibility by a Scheimpflug principle imaging laserradar. The device comprises a laser source, a light source shaping structure, a receiving imaging system and an industrial control computer. The laser source is controlled by and connected with the industrial control computer, and the laser source is connected to a fiber input end to output the laser to the light source shaping structure connected to a fiber output end; the light source shaping structure receives the laser light emitted by the laser source, and horizontally sends the shaped laser light to the atmosphere; the receiving imaging system receives the large-angle feedback scattering laser reflected from the atmosphere; and the industrial control computer is bidirectionally communicated and connected to the receiving imaging system, and a horizontally distributed image signal transmitted by the receiving imaging system is used for data inversion. According to the invention, the obtained imaging surface, the telescope lens surface and the laser beam intersect at one point, sothat the structure can effectively provide the depth of field for the system large-angle imaging, improve the signal-to-noise ratio of the near-end signal, and facilitate the data inversion of the laser radar.

Description

technical field [0001] The invention relates to the technical field of atmospheric visibility measurement, in particular to a device and method for retrieving atmospheric visibility by sand-type theorem imaging laser radar. Background technique [0002] Atmospheric visibility refers to the maximum distance at which a person with normal vision can recognize the target object from the background. Measuring atmospheric visibility generally adopts two methods of visual inspection and instrumental measurement, and can also be measured by measuring instruments such as atmospheric transmissometers and laser visibility automatic measuring instruments. The observed visibility value is greatly affected by human subjectivity, and its standardization and objectivity are relatively poor. [0003] Instrument measurement methods include transmission type visibility meter, scattering type visibility meter and pulsed backscattering lidar visibility meter. Scattering visibility meters mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/95G01S7/48G01S7/481
CPCG01S7/4802G01S7/481G01S17/95Y02A90/10
Inventor 曹开法汪思保汪飞潘汉诗
Owner 安徽科创中光科技股份有限公司
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