Portable aerosol boundary layer infrared detection laser radar

Abstract

The invention discloses a portable aerosol boundary layer infrared detection laser radar which comprises a box body, wherein a laser emission unit, an echo signal receiving unit, a signal collecting unit, a power supply unit, a temperature control unit and a control unit are arranged in the box body; the laser emission unit comprises a laser, a beam expanding lens and a wedge lens; the echo signalreceiving unit comprises a light shielding tube, an aspherical mirror, a light shielding ring group and a reflecting mirror; the reflecting mirror is arranged in a way of forming an acute included angle between the reflecting mirror and the axial line of the light shielding tube; a small-hole diaphragm is arranged in a focal point of a reflection light path of the reflecting mirror; a collimatinglens, a narrow band filter and a convergent lens are sequentially arranged at the back part of the small-hole diaphragm; the signal collecting unit comprises a photoelectric detector and a signal collecting bard; and the receiving target surface of the photoelectric detector is positioned in the focal point position of the gathering lens. The laser radar provided by the invention has the advantages that the structure is simple; the cost is low; the size is small; the weight is light; portability is realized; the environment adaptability is high; and the detection and the calculation can be independently completed by the laser radar.

Description

technical field [0001] The invention belongs to the field of laser radar detection of the atmosphere, in particular to a portable aerosol boundary layer infrared detection laser radar. Background technique [0002] Lidar is used for fine detection of the atmosphere due to its high temporal and spatial resolution. The laser radar emits laser light into the air, and the laser light reacts with the substances in the atmosphere and then reflects back to the ground. The laser radar signal receiving system receives the echo signal and calculates the required information through the inversion algorithm. [0003] Lidar has been developed for decades, and aerosol lidar has entered the stage of practicality and commercialization. However, from the perspective of aerosol lidar on the market, there are mainly deficiencies in the following aspects: The astronomical telescope is large in size and high in cost; the industrial computer is used to receive and process data, which is large in...

AI Technical Summary

Problems solved by technology

[0003] Lidar has been developed for decades, and aerosol lidar has entered the stage of practicality and commercialization. However, from the perspective of aerosol lidar on the market, there are mainly deficiencies in the following aspects: The astronomical telescope is large in size and high in cost; the industrial computer is used to receive and process data, which is large in size and high in power consumption; Carried and deployed by one person, the power consumption is large, and an external power supply must be connected; the structure is relatively complicated, and installation and debugging are inconvenient

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