| 车载式1 064 nm 和532 nm双波长米散射激光雷达 |
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| 引用本文： | 毛敏娟, 吴永华, 戚福弟, 等. 车载式1 064 nm 和532 nm双波长米散射激光雷达[J]. 强激光与粒子束, 2005, 17(05). |
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| 作者姓名： | 毛敏娟 吴永华 戚福弟 范爱嫒 岳古明 周军 |
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| 作者单位： | 1.中国科学院 安徽光学精密机械研究所, 安徽 合肥 230031 |
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| 摘 要： | 新近研制的车载式双波长米散射激光雷达可用于1 064 nm 和532 nm两个波长对白天与夜晚对流层气溶胶消光系数垂直分布进行的探测。该激光雷达由激光发射单元、接收光学和后继光学单元、信号探测和采集单元以及系统运行控制单元组成，后继光路之间采用光纤导光、高低层分层探测等关键技术。该激光雷达使用1 064 nm和532 nm的两个波长，其单发脉冲能量分别为400和300 mJ，重复频率都为20 Hz，光束发散角小于0.5 mrad ；望远镜接收视场为1～3 mrad，滤光片的中心波长为1 064 nm和532 nm，带宽1 nm。分别使用R3236及H7680的PMT和VT120及Phillips777的放大器对两个波长的信号进行探测；对532 nm波长用3 A/D采集卡、1 064 nm波长用了光子计数卡。给出了双波长测量对流层气溶胶消光系数垂直分布的结果，该激光雷达可以探测10-5～1之间的消光系数，探测高度可达10 km以上。
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| 关 键 词： | 双波长米散射激光雷达 对流层 气溶胶 消光系数 |
Mobile dual- wavelength Mie lidar |
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| mao min-juan, wu yong-hua, qi fu-di, et al. Mobile dual- wavelength Mie lidar[J]. High Power Laser and Particle Beams, 2005, 17. |
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| Authors: | mao min-juan wu yong-hua qi fu-di fan ai-yuan yue gu-ming zhou jun |
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| Affiliation: | 1. Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China |
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| Abstract: | A mobile dual-wavelength Mie lidar(DWL) is introduced. The DWL can be used to measure the aerosol extinction coefficient profiles at 1 064 nm and 532 nm wavelength. The DWL system is composed of a transmission unit, a signal receiving unit, a signal acquiring unit and a processing control unit. Some main specifications of the DWL system are presented, which include laser with 1 064 & 532 nm wavelengths and 400 & 300 mJ pulse energy, 20 Hz repetition rate and less 0.5 mrad divergence, telescope with 1~3 mrad FOV, two different PMT R3236 & H7680 and two different amplifier VT120 & Phillips777 for 1 064& 532 nm signal detecting, filters with 1 064 & 532 nm center wavelength they have 1 nm bandwidth, even different data acquiring cards and so on. The fundamental principles and key techniques o |
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| Keywords: | dual- wavelength mie lidar troposphere aerosol extinction coefficient |
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