基于CCD三波段发射率迭代的加热炉内温度场软测量研究  

Study on Soft Sensing of Temperature Field in Heating Furnace Based on CCD Triple-band Emissivity Iteration

作　　者：张鸣华 刘持标 陈玉叶 陈杞榕 Zhang Minghua;Liu Chibiao;Chen Yuye;Chen Qirong(School of Information Engineering,Sanming University,Sanming 365000;Plate Factory,Fujian Sanming Iron and Steel(Group)Co.,Ltd.,Sanming 365000)

机构地区：[1]三明学院信息工程学院,福建三明365000 [2]福建三钢(集团)有限责任公司中板厂,福建三明365000

出　　处：《冶金设备》2022年第5期36-41,共6页Metallurgical Equipment

摘　　要：通过利用CCD成像R、G、B三个通道的维恩公式,建立非黑体的光谱辐射亮度之比与其温度之间的关系式。针对传统无线测温方式受到检测距离与特定温度的限制并且不适应高温、粉尘、强光等特殊环境的不足,提出了基于CCD三波段发射率迭代的加热炉内温度场软测量的方法。使得炉内高温CCD相机在成像的同时,可以得到炉膛以及板坯温度的实时检测值,极大的提升了CCD相机成像的检测效果和适应性。实践表明,检测结果在高温,粉尘、强光环境下也取得了理想的效果。The relationship between the ratio of the spectral radiation brightness of a non-black body and its temperature is established by using the Wien radiation law for the three channels of CCD imaging R, G and B. The traditional wireless temperature measurement method is limited by the detection distance and specific temperature and does not adapt to the special environment such as high temperature, dust and bright light. The method on soft sensing of temperature field inside the furnace is proposed based on iterative CCD triple-band emissivity. It enables the high-temperature CCD camera in the furnace to get the real-time detection value of the furnace chamber and slab temperature while imaging, which greatly improves the detection effect and adaptability of CCD camera imaging. Practice shows that the detection results in high temperature, dust, strong light environment also achieved the desired results.

关 键 词：维恩辐射定律 发射率迭代 温度场 

分 类 号：TG155.12[金属学及工艺—热处理] TN219[金属学及工艺—金属学]