实验流体力学2025，Vol.39Issue(2)：23-29,7.DOI:10.11729/syltlx20230085
基于CCD相机图像的烧蚀模型表面温度与材料发射率测量方法
Measuring method of ablative model's temperature and emissivity based on CCD camera image
杨鹰 1于哲峰 1胥建宇 1张涛 1罗跃 1龙耀 1石卫波1
作者信息
- 1. 中国空气动力研究与发展中心 超高速空气动力研究所,绵阳 621000
- 折叠
摘要
Abstract
To solve the precise measurement problem of ablative model's temperature and material emissivity,this paper presents a method to measure the ablative model's surface emissivity in the high temperature flow field based on CCD camera images.Ablative model's image is obtained through CCD camera.For preprocessing,the image is denoised by non-local mean filtering algorithm and segmented based on its color information.Then the CCD camera's spectra response coefficient is standardized through the basalt blunt body ablation test.Based on image processing and coefficient standardization result,the temperature of the basalt blunt body and ablative plate model is simulated by colorimetric thermometry.Finally,ablative model's surface emissivity is determined by the correlation between emissivity and temperature.关键词
烧蚀/发射率/比色测温/图像处理/非局部均值滤波算法/光谱响应系数/比色测温法Key words
ablation/emissivity/colorimetric thermometry/image processing/non-local mean filtering algorithm/spectra response coefficient/colorimetric thermometry分类
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杨鹰,于哲峰,胥建宇,张涛,罗跃,龙耀,石卫波..基于CCD相机图像的烧蚀模型表面温度与材料发射率测量方法[J].实验流体力学,2025,39(2):23-29,7.
