Three-dimensional temperature measurement in flames by multispectral tomographic image analysis
Three-dimensional temperature measurement in flames by multispectral tomographic image analysis
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DOI：
10.1117/12.23521
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发表时间：
1990-11
影响因子：
4.5
通讯作者：
W. Fischer;H. Burkhardt
中科院分区：
文献类型：
--
作者：
W. Fischer;H. Burkhardt
提出了一种基于模型的图像分析技术，它允许燃烧和火焰参数和物理量的计算。发射层析成像技术被用来确定火焰的辐射强度分布，在旋转对称的情况下，只需要一个图像。在正则化和约束辐射强度分布之后，在不同的光学波长下检查两个或更多个图像的强度分布。图像分析可以用来确定三维温度分布和气体浓度为每个像素的高温测量方法，和其他测量温度的结果相比，毫不逊色。该技术可用于分析特定的辐射特性的燃烧过程中，采用光学滤波器
A model-based image-analysis technique is presented which allows the calculation of combustion and flame parameters and physical quantities. Emission-tomographic techniques are employed to determine the radiation-intensity distribution of the flame, and only one image is required in the case of rotational symmetry. After regularizing and constraining the radiation-intensity distribution the intensity distributions of two or more images are examined at different optical wavelengths. The image analysis can be used to determine 3D temperature distributions and gas concentrations for each pixel with pyrometric methods, and the results compare favorably with other measured temperatures. The technique can be used to analyze particular radiation characteristics of combustion processes by employing optical filters