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Rotary Raman lidar system and detection method for absolute detection of atmospheric temperature

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

Inactive Publication Date: 2017-07-28
XIAN UNIV OF TECH
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  • Abstract
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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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  • Rotary Raman lidar system and detection method for absolute detection of atmospheric temperature
  • Rotary Raman lidar system and detection method for absolute detection of atmospheric temperature
  • Rotary Raman lidar system and detection method for absolute detection of atmospheric temperature

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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 rotating Raman laser radar system and a detection method for absolutely detecting atmospheric temperature, which include a system control platform, a pulse laser, and a collimating beam expanding system connected in sequence, and are arranged in sequence along the output direction of the optical path of the collimating beam expanding system. The beam splitter, the first reflector, the second reflector, and the third reflector, part of the light beam reflected by the beam splitter is directed to the photoelectric detector, and the system control platform is also connected with the amplifier circuit, the data processing platform and the photoelectric detector respectively, and the data The processing platform is also sequentially connected to the amplification circuit, photoelectric detection system, and Raman spectrum-type spectroscopy system. The Raman spectrum-type spectroscopy system is connected to a high-efficiency coupler through a multimode fiber. The high-efficiency coupler is used to receive scattered light collected by a large-aperture telescope. It solves the limitation that the existing Raman lidar system requires parallel measurement equipment for data correction when detecting atmospheric temperature.

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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Patent Type & Authority Patents(China)
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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