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Nd:YAG连续激光辐照铝合金旋转抛物面的温度效应

程建中, 胡云, 张权, 张增明, 丁泽军

程建中, 胡云, 张权, 张增明, 丁泽军. Nd:YAG连续激光辐照铝合金旋转抛物面的温度效应[J]. 激光技术, 2009, 33(2): 141-144.
引用本文: 程建中, 胡云, 张权, 张增明, 丁泽军. Nd:YAG连续激光辐照铝合金旋转抛物面的温度效应[J]. 激光技术, 2009, 33(2): 141-144.
CHENG Jian-zhong, HU Yun, ZHANG Quan, ZHANG Zeng-ming, DING Ze-jun. Temperature effect of aluminum alloy paraboloid under the irradiation of continuous Nd:YAG lasers[J]. LASER TECHNOLOGY, 2009, 33(2): 141-144.
Citation: CHENG Jian-zhong, HU Yun, ZHANG Quan, ZHANG Zeng-ming, DING Ze-jun. Temperature effect of aluminum alloy paraboloid under the irradiation of continuous Nd:YAG lasers[J]. LASER TECHNOLOGY, 2009, 33(2): 141-144.

Nd:YAG连续激光辐照铝合金旋转抛物面的温度效应

基金项目: 

国家自然科学基金资助项目(10574121;90406024);教育部博士点基金和中国科学院基金资助项目

详细信息
    作者简介:

    程建中(1977- ),男,硕士研究生,从事激光推进的相关研究.

    通讯作者:

    张增明,E-mail:zzm@ustc.edu.cn

  • 中图分类号: TN249

Temperature effect of aluminum alloy paraboloid under the irradiation of continuous Nd:YAG lasers

  • 摘要: 为了研究激光推进中激光作用反射面后的温度效应,采用自行设计的温度测量系统对不同激光功率辐照下的旋转抛物面铝合金靶的表面温度进行了测试,得到了不同条件下温度-时间关系曲线。结果表明,激光吸收率随激光入射角的增大而增大;罩面上的表面温度与位置相关,自辐照点至径向各点上的温度符合高斯分布,激光辐照点与其它各点呈现明显不同的升温和降温特点;激光辐照停止约数秒后,旋转抛物面表面上各点的温度趋于一致,之后按同一种热扩散方式和降温曲线变温。
    Abstract: In order to study the effect of the surface temperature of reflector under the laser irradiation during laser propulsion,a self-designed temperature measurement system was adopted to measure the surface temperature of the rotating parabolic aluminum target under the irradiation of different laser power,the temperature vs.time curves in different conditions was obtained.The results show that the laser absorptivity increases with the incidence angle; the surface temperature depends on the radial distance from irradiating position according to the Gaussian distribution function.The inadiation position has different rising and lowering temperature features compared with other positions.The temperatures on the surface tend to be the same and follow the same thermal diffusion and temperature lowing curve since several seconds after switching off the laser irradiation.
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出版历程
  • 收稿日期:  2008-01-27
  • 修回日期:  2008-04-15
  • 发布日期:  2009-04-24

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