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Rotational raman lidar system for absolutely detecting atmosphere temperature and detecting method

A technology of rotating Raman and lidar, applied in radio wave measurement systems, thermometers, thermometers with physical/chemical changes, etc.

Inactive Publication Date: 2015-07-01
XIAN UNIV OF TECH
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Problems solved by technology

[0007] The purpose of the present invention is to provide a rotating Raman lidar system that can absolutely detect the atmospheric temperature, which solves the limitation that the existing Raman lidar system needs parallel measurement equipment for data correction when detecting the atmospheric temperature

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  • Rotational raman lidar system for absolutely detecting atmosphere temperature and detecting method
  • Rotational raman lidar system for absolutely detecting atmosphere temperature and detecting method
  • Rotational raman lidar system for absolutely detecting atmosphere temperature and detecting method

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The present invention absolutely measures the rotational Raman laser radar system of atmospheric temperature, and the structure is as follows figure 1 As shown, it includes a system control platform 1, a pulsed laser 2, a collimator beam expander system 3, a beam splitter 4, a first reflector 7, a second reflector 8, and a third reflector 9 connected in sequence, and the system control platform 1 also The first connection cable 6 is connected with the photodetector 5, the system control platform 1 is connected with the amplification circuit 18 by the fourth connection cable 20, the system control platform 1 is connected with the data processing platform 21 by the fifth connection cable 22, and the data processing platform 21 Connect with amplifying circuit 18 by the 3rd connecting cable 19, amplifying circuit 18 is connected with photo...

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Abstract

The invention discloses a rotational raman lidar system for absolutely detecting atmosphere temperature and a detecting method. The system comprises a system control platform, a pulse laser and a collimation beam expanding system which are sequentially connected; a beam splitter mirror, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror are sequentially arranged in the light path outgoing direction of the collimation beam expanding system; part of light beams reflected by the beam splitter mirror irradiate to a photoelectric detector; the system control platform is respectively connected with an amplifying circuit, a data processing platform and a photoelectric detector; the data processing platform is sequentially connected with an amplifying circuit, a photoelectric detecting system and a raman spectra type beam splitting system, wherein the raman spectra type beam splitting system is connected with an efficient coupler through a multi-die fiber; the efficient coupler is used for receiving scattered light collected by a large-aperture telescope. With the adoption of the system, the limitation that the measurement device is to be travelled in parallel and the data are to be corrected during detecting the atmosphere temperature through the existing raman lidar system can be solved.

Description

technical field [0001] The invention belongs to the technical field of laser active remote sensing detection, relates to a rotating Raman laser radar system for absolutely detecting atmospheric temperature, and also relates to a method for absolutely detecting atmospheric temperature by using the rotating Raman laser radar system. Background technique [0002] Atmospheric temperature is an important indicator of the state of the atmosphere. In the past two decades, Raman lidar has been rapidly developed and applied as an active remote sensing detection technology. Its detection principle relies on the rotation of atmospheric molecules. Due to the Altzmann distribution, its detection is not affected by aerosol extinction, and higher detection accuracy can be obtained at low altitudes where aerosol particles are abundant. [0003] However, the existing Raman lidar technology for detecting atmospheric temperature all adopts relative detection technology, which requires a variet...

Claims

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Application Information

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IPC IPC(8): G01S17/95G01K11/32G01K11/324
CPCG01K11/3206G01S17/95Y02A90/10
Inventor 李仕春华灯鑫辛文辉宋跃辉
Owner XIAN UNIV OF TECH
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