激光云粒子成像探测仪研制 |
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引用本文: | 史晓丁,冯力天,刘英,杨泽后,伍波,石磊.激光云粒子成像探测仪研制[J].激光技术,2023,47(1):67-72. |
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作者姓名: | 史晓丁 冯力天 刘英 杨泽后 伍波 石磊 |
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作者单位: | 1.西南技术物理研究所, 成都 610041 |
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摘 要: | 为了研究云粒子微观特性, 采用激光成像技术、高斯光束匀化处理技术、高分辨率阵列探测器以及图像抽帧还原算法, 研制出激光云粒子成像仪。通过地面模拟测量及实际飞行试验, 对仪器性能进行了测试。结果表明, 研制仪器可实现对25 μm~1550 μm云粒子的成像, 分辨率为25 μm, 粒径测量误差小于9.5%;实测的冰晶粒子形态符合云粒子自然分布规律, 粒子尺度谱符合指数分布, 决定系数在0.58~0.97之间。该研制仪器可为云降水微物理研究提供基础观测数据。
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关 键 词: | 激光技术 云粒子探测仪 线阵成像 尺度谱 |
收稿时间: | 2021-11-30 |
Laser cloud particle imaging probe |
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Abstract: | For studying the micro features of cloud particles, a laser cloud particle imaging probe was developed by using laser imaging technology, homogenizing technology of Gaussian beam, and a high resolution array detector and a frame-extracting algorithm of image. The performance of the instrument was tested through simulation measure and actual flight experiment. The results show that for cloud particles of 25 μm~1550 μm with 25 μm resolution can be imaged with the developed instrument, and the error of particle-size measured is less than 9.5%. The particle shape of ice crystal watched conforms to the natural distribution of cloud particles, the particle-size distribution conforms to the exponential function with a determination coefficient between 0.58 and 0.97.The developed instrument can provide basic observation data for the study of cloud and precipitation microphysics. |
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