| 激光熔池温度场检测研究 |
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| 引用本文： | 雷剑波,杨洗陈,陈娟,王云山.激光熔池温度场检测研究[J].华中科技大学学报(自然科学版),2007,35(Z1). |
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| 作者姓名： | 雷剑波 杨洗陈 陈娟 王云山 |
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| 作者单位： | 天津工业大学,激光技术研究所,天津,300160 |
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| 基金项目： | 国家自然科学基金
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天津市科委资助项目 |
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| 摘 要： | 基于斯蒂藩-玻耳兹曼定律,提出采用电荷耦合器件(CCD)检测熔池温度场的方案,研制了一套CCD检测温度场系统.该系统主要由CCD、光学系统和数据分析软件组成.采用BF1400黑体炉对系统进行了标定,拍摄了不同功率下的CO2激光熔池,经过专用软件分析,得到了激光熔池温度场分布.结果表明该项技术能够实时检测整个熔池表面温度场,属于非接触测量,对熔池温度场无干扰.
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| 关 键 词： | 激光技术 熔池 温度场 检测 电荷耦合器件 |
Study on measurement of temperature field in laser molten pool |
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| Lei Jianbo,Yang Xichen,Chen Juan,Wang Yunshan.Study on measurement of temperature field in laser molten pool[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(Z1). |
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| Authors: | Lei Jianbo Yang Xichen Chen Juan Wang Yunshan |
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| Abstract: | Based on Stefan-Boltzmann law,the method of temperature field measurement by charge coupled devices(CCD) was proposed.A system of temperature field measurement by CCD was developed.The system was mainly consisted of CCD,optics elements and data analysis element.The system was calibrated by BF1400 blackbody furnace.Image information of temperature field in CO2 laser molten pool at different power was collected.The distribution of temperature field was analyzed by special analysis software.It was shown that temperature field in laser molten pool could be measured at real time.It was a non-destructive measurement method,which would be much more available on online measurement and feedback control in laser processing,such as laser welding and laser cladding. |
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| Keywords: | laser technique molten pool temperature field measurement charge coupled devices |
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