Doppler laser radar device for measuring multiple meterological parameters

Abstract

The invention relates to a Doppler laser radar device for measuring multiple meterological parameters, which comprises a transmitting system, a receiving system, a data acquisition system and a data processing computer, wherein the transmitting system comprises a pulse laser, a beam expander and a reflecting mirror; the receiving system comprises a telescope, an iodine filter, two photoelectric detectors and a light-dividing device; and the data acquisition system and the data processing computer are connected with the photoelectric detectors. The Doppler laser radar device is characterized in that the light-dividing device comprises six optical filter plates, and the light path position relation is as follows: atmospheric scattered light is projected onto the optical filter plate (a), and the reflected light of the optical filter plate (a) is vertically projected onto the optical filter plate (b); the transmitted light of the optical filter plate (a) is projected onto the optical filter plate (c) to the iodine filter; the reflected light of the optical filter plate (c) is projected onto the optical filter plate (d); the reflected light of the optical filter plate (d) is projected onto the optical filter plate (e); and the reflected light of the optical filter plate (e) is vertically projected onto the optical filter plate (f), and each transmitted light is received by the relative photoelectric detector. The invention can synchronously obtain atmospheric humidity, temperature, wind field and aerosol parameters within one-time light detection; and high cost and high consumption of multi-radar detection are obviously reduced.

Description

technical field [0001] The invention relates to a device for measuring multiple meteorological parameters by laser, more specifically a Doppler laser radar device for measuring atmospheric humidity, temperature, wind field and aerosol parameters. Background technique [0002] Meteorological parameters such as atmospheric humidity, temperature, wind field, and aerosol are basic elements in describing atmospheric dynamic and thermal structure, weather analysis and forecasting, and climate and environmental research, and play an important role in ocean, atmosphere, and environmental research. Doppler lidar has high temporal and spatial resolution and large detection range, and can perform long-term continuous three-dimensional measurement, provide high-precision wind, temperature, humidity and aerosol data, and solve the current meteorological parameters in atmospheric detection. The problem of insufficient profile and horizontal distribution data. [0003] The LiDAR currently...

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However, its disadvantages such as expensive equipment cost and maintenance, single function, and

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