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METHOD OF PERFORMING VISUALIZED MEASUREMENT ON THICKNESS DISTRIBUTION OF PAINT FILM AND APPARATUS THEREFOR
METHOD OF PERFORMING VISUALIZED MEASUREMENT ON THICKNESS DISTRIBUTION OF PAINT FILM AND APPARATUS THEREFOR
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机译:对涂料薄膜厚度分布的可视化测量的方法及其
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摘要
A method of performing visualized measurement on thickness distribution of a paint film and an apparatus therefor. A measurement target region is heated by a heating unit that applies a light beam while moving relative to the measurement target region of a measurement target structure. A sensing unit moving together with the heating unit generates a plurality of thermal images related to a phenomenon in which thermal energy is propagated in the measurement target region by scanning and photographing the heated measurement target region. The thermal images in a dynamic state are converted into time-spatial-integrated thermal images in a static state by performing coordinate transformation according to a time-spatial-integrated coordinate transformation algorithm. A thickness of the paint film is calculated by using a Fourier thermal conduction equation. A noise caused by an external heat source is removed by subtracting a pre-heating time-spatial-integrated thermal image from the converted time-spatial-integrated thermal image.
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