温度、湿度及压强对激光在水中衰减特性的影响?

物理学报

温度、湿度及压强对激光在水中衰减特性的影响?

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史久林, 郭鹏峰, 黄育, 钱佳成, 王泓鹏, 刘娟, 何兴道. 2015: 温度、湿度及压强对激光在水中衰减特性的影响?, 物理学报, null(2): 24215. doi: 10.7498/aps.64.024215

引用本文:

史久林, 郭鹏峰, 黄育, 钱佳成, 王泓鹏, 刘娟, 何兴道. 2015: 温度、湿度及压强对激光在水中衰减特性的影响?, 物理学报, null(2): 24215. doi: 10.7498/aps.64.024215

Shi Jiu-Lin, Guo Peng-Feng, Huang Yu, Qian Jia-Cheng, Wang Hong-Peng, Liu Juan, He Xing-Dao. 2015: Influences of temp erature, humidity and pressure on the attenuation characteristics of laser b eam in water, Acta Physica Sinica, null(2): 24215. doi: 10.7498/aps.64.024215

Citation:

Shi Jiu-Lin, Guo Peng-Feng, Huang Yu, Qian Jia-Cheng, Wang Hong-Peng, Liu Juan, He Xing-Dao. 2015: Influences of temp erature, humidity and pressure on the attenuation characteristics of laser b eam in water, Acta Physica Sinica, null(2): 24215. doi: 10.7498/aps.64.024215

温度、湿度及压强对激光在水中衰减特性的影响?

南昌航空大学，无损检测技术教育部重点实验室，南昌 330063

Influences of temp erature, humidity and pressure on the attenuation characteristics of laser b eam in water

摘要: 从实验上研究了不同大气环境(温度、湿度、气压)条件下532 nm激光在水中的衰减特性。实验结果显示大气环境对激光的衰减系数有着重要的影响。衰减系数随大气压强的增加而减小，随温度的增加而增加，最大衰减系数出现在最高水温和最低气压条件下。当气压低并且温度高时，衰减系数最大，最大衰减系数值是最小衰减系数的三倍。在实验测量的基础上，详细分析了大气环境影响激光衰减特性的物理机理，研究结果对分析布里渊激光雷达海洋遥感探测具有重要意义。
- 布里渊激光雷达 /
- 衰减系数 /
- 大气环境
Abstract: In this paper, the attenuation characteristics of 532 nm laser beam in water under different atmospheric conditions (temperature, humidity, air pressure) are investigated experimentally. Experimental results show that the attenuation coe?cient of laser beam in water is significantly influenced by the atmospheric environment. The attenuation coe?cient decreases with the increase of air pressure, and increases with the increase of temperature. The maximum value of attenuation coe?cient of light appears in the case of high temperature and low air pressure, while the minimum value appears in the high air pressure and low temperature. The maximum attenuation coe?cient of laser in water is about three times the minimum value. The mechanisms of these phenomena are discussed. These results are valuable for Brillouin lidar to achieve the remote sensing of ocean.

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温度、湿度及压强对激光在水中衰减特性的影响?

南昌航空大学，无损检测技术教育部重点实验室，南昌 330063

关键词:

摘要: 从实验上研究了不同大气环境(温度、湿度、气压)条件下532 nm激光在水中的衰减特性。实验结果显示大气环境对激光的衰减系数有着重要的影响。衰减系数随大气压强的增加而减小，随温度的增加而增加，最大衰减系数出现在最高水温和最低气压条件下。当气压低并且温度高时，衰减系数最大，最大衰减系数值是最小衰减系数的三倍。在实验测量的基础上，详细分析了大气环境影响激光衰减特性的物理机理，研究结果对分析布里渊激光雷达海洋遥感探测具有重要意义。

English Abstract

Influences of temp erature, humidity and pressure on the attenuation characteristics of laser b eam in water

南昌航空大学，无损检测技术教育部重点实验室，南昌 330063

Keywords:

Abstract: In this paper, the attenuation characteristics of 532 nm laser beam in water under different atmospheric conditions (temperature, humidity, air pressure) are investigated experimentally. Experimental results show that the attenuation coe?cient of laser beam in water is significantly influenced by the atmospheric environment. The attenuation coe?cient decreases with the increase of air pressure, and increases with the increase of temperature. The maximum value of attenuation coe?cient of light appears in the case of high temperature and low air pressure, while the minimum value appears in the high air pressure and low temperature. The maximum attenuation coe?cient of laser in water is about three times the minimum value. The mechanisms of these phenomena are discussed. These results are valuable for Brillouin lidar to achieve the remote sensing of ocean.

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