Data fusion of lockin-thermography phase images for innovative non-destructive evaluation
Data fusion of lockin-thermography phase images for innovative non-destructive evaluation
复制标题
锁定热成像相位图像的数据融合，用于创新的无损评估
DOI：
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复制
发表时间：
2009
期刊：
影响因子：
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通讯作者：
G. Busse
中科院分区：
文献类型：
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作者：
C. Spiessberger;A. Gleiter;G. Busse
锁定热像仪是材料无损检测的一种有价值的工具，因为它提供了可靠和易于解释的相图。本文提出了一种利用散点图来组合不同锁定频率下的相位图像的创新方法。不仅可以从原始数据中提取缺陷等特征，还可以从反射系数等热波参数中提取。提取的特征可以追溯到原始图像。此外，偏离预期和众所周知的一维热流模型揭示了测量样品中的横向热流。
Lockin-thermography is a valuable tool in non-destructive testing of materials because it provides reliable and easy-to-interpret phase images. This paper presents an innovative way to combine phase images obtained at different lockin-frequencies by using scatter plots. Not only features like defects can be extracted out of the raw data, but also thermal wave parameters like reflection coefficients. The extracted features can be traced back to the original image. Additionally, deviations from the expected and well-known model of onedimensional heat flow reveal lateral heat flows within the measured sample.