Atmospheric turbulance detection laser rader using position-sensitive detector
An atmospheric turbulence and laser detection technology, applied in the field of atmospheric turbulence parameter detection, can solve the problems of poor detection sensitivity and position measurement accuracy, limited space range, and inability to continuously measure, and achieve high sensitivity, low price, and flexible detection direction. Effect
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[0034]The present invention will be further described below in conjunction with accompanying drawing:
[0035] It can be seen from Fig. 1 that the atmospheric turbulence detection lidar using position-sensitive detectors includes a pulse laser emitting unit 1, an echo light receiving unit 2, a photoelectric conversion unit 3, and a data acquisition and processing unit 4.
[0036] The pulse laser emitting unit 1 and the echo light receiving unit 2 are all prior art; the pulse laser emitting unit is composed of a pulse laser 11 with an external trigger input terminal and a beam expander 12; Orifice plate 21, receiving telescope objective lens 22, pinhole diaphragm 23, collimating lens 24, interference filter 25 and focusing lens 26 are formed; Place them close together so that the transmitted and received beams are approximately parallel.
[0037] The photoelectric conversion unit 3 consists of a reflective prism 31 and two position sensitive detectors 32 , 33 . The reflective...
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