大气与环境光学学报 ›› 2011, Vol. 6 ›› Issue (4): 311-316.

• 光电技术 • 上一篇    下一篇

基于彩色CCD像素点亮度的测温原理研究

周德玉,夏需堂   

  1. (安徽大学物理与材料科学学院,安徽 合肥 230039)
  • 收稿日期:2011-03-25 修回日期:2011-04-01 出版日期:2011-07-28 发布日期:2011-07-18
  • 通讯作者: 周德玉 (1982-)男,汉族,安徽凤阳人,研究生,研究方向为光电技术与信息。 E-mail:47600980@qq.com
  • 作者简介:周德玉 (1982-)男,汉族,安徽凤阳人,研究生,研究方向为光电技术与信息。
  • 基金资助:

    科技部创新基金项目(07C26213400516)资助

Principle of Tempetrature Measurement Based on Colorful CCD Pixel Brightness

ZHOU De-yu, XIA Xu-tang   

  1. (School of Physics and Materials Science, Anhui University, Hefei 230039, China)
  • Received:2011-03-25 Revised:2011-04-01 Published:2011-07-28 Online:2011-07-18

摘要:

推导出了CCD像素点亮度和具有实物面的高温辐射体温度之间的关系。结合比色测温法,提出了一种基于面阵CCD图像的温度场检测方法。分别在普通煤炉和黑体炉上用一套经黑体炉标定过的测温系统进行测温实验,取得良好效果。通过比较热电偶测量值和本算法计算温度值,分析了本测温方法的误差产生原因。

关键词: 比色测温, CCD图像, 温度场, 红外辐射

Abstract:

The formula between temperature of the objects having real surface and luminance of the pixels in the CCD image is deduced. A high temperature field measurement method based on color CCD is discussed according to the principle of two-color pyrometer. The method is used to measure the temperature of a black-body furnace and a coal furnace through a CCD camera, which is scaled by a black-body furnace beforehand. The calculation data is compared with the measurement results of thermocouple, and it shows that the precision of the method is satisfying. Furthermore, the measurement errors are analyzed.

Key words: two-color pyrometering, CCD image, temperature field, infrared radiation

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