激光与光电子学进展, 2015, 52 (10): 101001, 网络出版: 2015-10-08
基于小波变换的红外热像钢水测温研究
Infrared Thermal Image of Molten Steel Temperature Measurement Based on Wavelet Transform
测量 红外热像测温 小波变换 熔融金属 图像处理 measurement infrared thermal imaging temperature measurement wavelet transform the molten metal image processing Matlab Matlab
摘要
基于热辐射测温原理,介绍了红外热像仪测温理论,为了提高钢水的测温精度,搭建了实验平台,获得了不同温度下的熔融金属(钢水)的红外图像。通过小波去噪方法获得信噪比较高的红外灰度图像,利用Matlab 软件进行温度场等温线的绘制和形态学显示,使其能够真实的再现熔池表面温度场情况,从而达到测量精度和设计要求,此方法为熔融金属在线红外热像测温的研究打下了坚实的基础。
Abstract
Based on the principle of radiation temperature measurement, the theory of temperature measurement with infrared thermal imager is introduced, in order to improve the measurement accuracy of molten steel, an experimental platform is built, the infrared image of molten metal under different temperature are obtained. Through the wavelet denoising method for infrared image with high signal-to-noise ratio, display temperature and morphology is obtained by using Matlab software, which can reproduce the molten pool surface temperature field real, so as to achieve the requirements of measurement accuracy and design. This method lays a strong foundation for molten metal on-line infrared temperature measurement.
马翠红, 刘俊秘, 杨友良. 基于小波变换的红外热像钢水测温研究[J]. 激光与光电子学进展, 2015, 52(10): 101001. Ma Cuihong, Liu Junmi, Yang Youliang. Infrared Thermal Image of Molten Steel Temperature Measurement Based on Wavelet Transform[J]. Laser & Optoelectronics Progress, 2015, 52(10): 101001.