High/low-altitude double-reception ozone differential absorption laser radar device

A technology of differential absorption and radar devices, which is applied in the directions of measurement devices, electromagnetic wave re-radiation, and utilization of re-radiation, etc. It can solve the problem of low signal-to-noise ratio, insufficient dynamic range of ozone detection, and poor integrated detection performance of differential absorption laser radar, etc. problems, to achieve the effect of meeting the operational requirements, improving the dynamic range and signal-to-noise ratio, and improving the detection performance

Active Publication Date: 2017-11-17
安徽科创中光科技股份有限公司
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Problems solved by technology

[0003] Although the existing patent CN103293533A realizes the observation and analysis of atmospheric ozone by using multiple wavelengths, it has the disadvantages of insufficient dynamic range for ozone detection, low signal-to-noise ratio and poor integrated detection performance of differential absorption lidar

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  • High/low-altitude double-reception ozone differential absorption laser radar device

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Embodiment Construction

[0018] 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.

[0019] Such as figure 1 As shown, ultraviolet pumping laser 1, focusing system 2, stimulated Raman laser system 3, beam expander 4, collimating mirror 5, high and low altitude double receiving telescope 6, optical fiber, first spectrometer 81, second spectrometer 82. Photomultiplier tube PMT9, low-altitude analog acquisition system, high-altitude quantum acquisition system, environmental sensing system and intelligent control unit. Wherein, the ultraviolet pu...

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Abstract

The invention discloses a high / low-altitude double-reception ozone differential absorption laser radar device, which comprises an ultraviolet pump laser, a focusing system, a stimulated Raman laser system, a beam expanding device, a collimating mirror, a high / low-altitude double-reception telescope, fibers, a first spectrophotometer, a second spectrophotometer, photomultipliers PMT, a low-altitude analog acquisition system, a high-altitude quantum acquisition system, an environment sensing system and an intelligent control unit. Through design of high / low-altitude double reception and low-level weak signal quantum acquisition, system dynamic range and signal-to-noise ratio are improved, and high / low-altitude integrated detection performance of a differential absorption laser radar is improved; and through apparatus integrated design and modularization design, the device has lighting protection design, wind-proof and rain-proof design and mirror defogging and skylight automatic cleaning functions and the like, meets the IP65 protection level and meets outdoor all-weather and all-time operation requirements.

Description

technical field [0001] The invention relates to the field of ozone differential absorption laser radar devices, in particular to a high and low altitude double receiving ozone differential absorption laser radar device. Background technique [0002] Regarding ozone, most people know that the ozone layer has the function of preventing ultraviolet rays, but many people do not know that the ozone layer mentioned here is actually in the stratosphere of the atmosphere, and there is also ozone in the troposphere, which accounts for 10% of the total amount of ozone in the atmosphere. Part of ozone plays an important role in tropospheric air pollution. Ozone is a strong oxidant. It reacts with other substances to form a variety of toxic oxides, which is extremely harmful to the human body, and ozone plays an important role in the generation of smog. Therefore, the monitoring of tropospheric ozone has also received more and more attention. Differential absorption lidar technology is...

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Application Information

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IPC IPC(8): G01S17/95
CPCG01S17/95Y02A90/10
Inventor 汪思保
Owner 安徽科创中光科技股份有限公司
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