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论文:2017,Vol:35,Issue(3):442-447 |
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引用本文： |
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黄希桥, 李前翔, 王苗苗, 冯翔洲, 郑龙席. CCD测温中火焰温度与颜色的关系[J]. 西北工业大学学报 |
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Huang Xiqiao, Li Qianxiang, Wang Miaomiao, Feng Xiangzhou, Zheng Longxi. The Relation of the Temperature and Color of the Flame of the CCD Temperature Measurement[J]. Northwestern polytechnical university |
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| CCD测温中火焰温度与颜色的关系 |
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| 黄希桥, 李前翔, 王苗苗, 冯翔洲, 郑龙席 |
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| 西北工业大学 动力与能源学院, 陕西 西安 710072 |
| 摘要: |
| 介绍了彩色CCD与比色测温法的测温原理，在此基础上，制定了测温系统的实验方案——利用CCD高速摄像机、K型热电偶、本生灯对扩散火焰的表面温度分布进行了实验研究。实验结果表明，当火焰温度上升时，火焰红色分量和绿色分量的灰度值都有所上升，而火焰红色分量灰度值的上升趋势明显大于绿色灰度值的上升趋势。同时，在测温公式中给出的修正值K却呈下降趋势。在分析了这些趋势后，用比色测温法对火焰温度场进行了测量，并与热电偶测量出的数值进行了对比。结果表明两者测量出的温度差少于20 K。 |
| 关键词:
CCD相机
实验设计
像素点
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| The Relation of the Temperature and Color of the Flame of the CCD Temperature Measurement |
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| Huang Xiqiao, Li Qianxiang, Wang Miaomiao, Feng Xiangzhou, Zheng Longxi |
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| School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| This paper introduces the principle of temperature measurement of color CCD and two-color thermometry. Experiment scheme of the temperature measurement is designed. The CCD high-speed camera, thermoelectric couple of K type and Bunsen burner are utilized to measure the temperature of the surface of the diffusion flame. The results show that the gray levels of red component and the green component is both rise, while the increase tendency of the red component is more obvious. Besides, the correction factor K, given in the equation of the temperature measurement, is decreased. The temperature is also measured by two-color thermometry and the difference of the value measured by two different methods is less than 20 K. |
| Key words:
CCD camera
design of experiments
pixels
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| 收稿日期: 2016-10-12
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金（51476135）与航空科学基金（2015ZB53026）资助 |
| 通讯作者:
Email： |
| 作者简介: 黄希桥(1973-),女,西北工业大学副教授,主要从事燃烧学研究。
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