Full-optical-fiber Doppler coherent laser radar wind speed measuring device

A technology of laser radar and wind speed measurement, which is applied in the direction of measuring device, fluid speed measurement, speed/acceleration/shock measurement, etc., to achieve the effects of strong environmental adaptability, easy connection, shock and vibration resistance

Active Publication Date: 2013-12-25
NANJING MOVELASER TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The problem to be solved by the present invention is to overcome the shortcomings of traditional wind speed measurement methods and provide an all-fiber Doppler coherent laser radar wind speed measurement device

Method used

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  • Full-optical-fiber Doppler coherent laser radar wind speed measuring device

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0032] First please refer to figure 1 , figure 1 It is a block diagram of the overall structure of the all-fiber Doppler coherent lidar wind speed measuring device of the present invention. Depend on figure 1 It can be seen that the all-fiber Doppler coherent lidar wind speed measurement device of the present invention includes an all-fiber laser 1 and a circulator 2, and the first output end of the all-fiber laser 1 and the first port of the circulator 2 The output direction of the second port of the circulator is the telescope 3, and the telescope 3 is connected with the first input end of the scanner 13, and the output direction of the third port of the circulator 2 is the first port of the coupler 4. The input end, the second output end of the all-fiber laser 1 is co...

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Abstract

A full-optical-fiber Doppler coherent laser radar wind speed measuring device is composed of a laser device, a circulator, a telescope, a coupler, a balanced detector, an amplifier, a controller, a analog-digital converter, a processor, a scanner, a waveform modulator and a display and storage unit. The full-optical-fiber Doppler coherent laser radar wind speed measuring device can achieve wind speed measurement which is high in high wind speed measuring accuracy and range resolution and meet requirements of wind speed measurement with different detection distances, different range resolutions and different wind speeds.

Description

technical field [0001] The invention relates to a wind-measuring laser radar, in particular to an all-fiber Doppler coherent laser wind-measuring radar device and a measuring method thereof. Background technique [0002] Doppler coherent wind lidar has been widely used in the measurement of atmospheric wind field information abroad, including clear-air turbulence, wind shear, airport wind measurement, hurricane tracking, and aircraft trajectory eddy current detection. LiDAR has been reported. Using laser radar to measure wind speed can make up for the lack of detection by microwave radar in sunny days, and at the same time, it can obtain higher wind speed measurement accuracy and distance resolution during measurement. In order to meet the complex and changeable measurement requirements, the Doppler coherent wind lidar adapted to the moving platform has become a development trend. For the measurement of low tropospheric wind speed, the eye-safe 2.0μm or 1.5μm coherent laser...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/26
Inventor 陈卫标刁伟峰张鑫刘继桥竹孝鹏刘源
Owner NANJING MOVELASER TECH CO LTD
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