Detection Raman laser radar light path system

Abstract

The invention provides a detection Raman laser radar light path system and relates to the laser atmosphere remote sensing technology field. The detection Raman laser radar light path system comprises a laser emission module, an optical receiving module and a data acquisition module. Second harmonic generation 532nm pulse laser emitted by the laser emission module to atmosphere is interacted with atmosphere particles so as to generate a scattered light signal. The scattered light signal carries out retroreflection and is received by a telescopic system of the optical receiving module. Received light is successively divided into five layers and simultaneously light splitting processing is performed, and then the light is processed by the data acquisition module. In the prior art, for single detection of an atmospheric temperature, moisture, nitrogen and aerosol, different equipment needs to be used to carry out detection so that detection cost is high; resources are wasted; time is wasted too; a detection personnel workload is large; the size of the equipment is large too; the structure is complex; and a detection system is tedious and so on. By using the detection Raman laser radar light path system provided in the invention, the above problems are solved.

Description

technical field [0001] The invention relates to the technical field of laser atmospheric remote sensing, in particular to an optical path system for detecting Raman lidar. Background technique [0002] Lidar is an advanced detection technology combining laser technology and modern photoelectric detection technology, which uses lasers as the emission light source and uses photoelectric detection technology as an active remote sensing device. Because lidar has the advantages of high detection sensitivity and high spatial resolution, it has become an effective method for high-precision remote sensing detection of the atmosphere, ocean and land. Lidar can use the interaction between laser and air molecules and aerosol particles existing in the atmosphere to realize the active remote sensing detection of atmospheric optical and physical characteristics, as well as atmospheric meteorological parameters. [0003] In the current market, lidar is mainly aimed at the single detection...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a detection Raman lidar optical path system to solve the problem of single detection of atmospheric temperature, water vapor, nitrogen and aerosol in the prior art, which needs to use different equipment for detection, thereby making the detection cost high. Waste of resources, time-consuming, heavy workload of testing personnel, and the equipment used is bulky, complex in structure, cumbersome in testing systems, etc.

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