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| 激光加工温度场CCD检测中的温度标定 | |
| 引用本文： | 陈娟,杨洗陈,雷剑波,王云山.激光加工温度场CCD检测中的温度标定[J].中国激光,2007,34(s1):354-356. |
| 作者姓名： | 陈娟 杨洗陈 雷剑波 王云山 |
| 作者单位： | 陈娟:天津工业大学激光技术研究所， 天津 300160 杨洗陈:天津工业大学激光技术研究所， 天津 300160 雷剑波:天津工业大学激光技术研究所， 天津 300160 王云山:天津工业大学激光技术研究所， 天津 300160 |
| 基金项目： | 国家自然科学基金(60478004)和天津市科委重点攻关项目(033188011)资助课题。 |
| 摘 要： | 激光加工温度场的检测对实现激光加工智能化有重要的实用价值。根据比色测温原理，提出采用彩色CCD和计算机图像处理相结合检测激光加工温度场的实验方案，研究CCD比色测温的温度标定。采用BF1400和BBR1000型国家标准黑体炉作为温度标定仪器，用WV-CP474型CCD相机在标定温度范围700～1400 ℃时，每隔100 ℃拍摄黑体炉靶面图像。开发了基于VC++的温度场图像处理专用软件，并对CCD拍摄的图像进行处理，建立了温度与比色值的数学关系表达式，并给出了待定系数。结果表明：CCD测温数据与现行标准测温数据之间存在良好的对应关系，进一步发展后，可成为激光加工温度场检测的有效手段。 |
| 关 键 词： | 激光技术 温度场 温度标定 熔池 比色测温 CCD |
Calibration Study on Measurement of Temperature Field in Laser Processing by CCD |
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| Abstract: | It was inportant in measuring temperature field in laser processing for laser intelligence process. The measurement of temperature field in laser processing by color CCD camera and computer image technology was presented in this paper, and which is focused on the calibration of CCD colorimetric method. BF1400 and BBR1000 standard blackbody furnace and WV-CP474 CCD were used in this method. The images of temperature of blackbody furnace had been taken in step of 100 ℃ from 700 ℃ to 1400 ℃. Special program based on VC++ had been developed to process the images, and the relationship between colorimetric level and temperature had been established. It was shown that a good agreement between testing dada and real data, and it will be a useful method for measurement of temperature field for laser process after developed. |
| Keywords: | laser technique temperature field temperature calibration molten pool colorimetric method CCD |