汽车透明漆层中汽车透明漆层厚度检测方案(白光干涉测厚)

Film Metrology & More...For further information， please contact us at info@thetametrisis.com or sales@thetametrisis.comThetaMetrisis C 2018， www.thetametrisis.com ThetaMetrisis APPLICATION NOTE #022 Thickness determination of car's clear coat paint layer Introduction： Thickness uniformity of the clear coating layer (the layer that protects the paint layer of a car)， is responsible forthe final surface quality of a car. Therefore， thickness determination is a significant parameter that has to bemonitored during the automotive painting process. In this application note， measurements of clear coat paintlayer thickness in different spots of a used car are being demonstrated using ThetaMetrisis FR-Tools. Means & Methods：The thickness of clear coat paint layer was measured inthe 850 -1700nm spectral regime， using FR-Series product. In order toidentify the uniformity of the paint thickness， measurements were made atdifferent points of a used car. The measurement set-up is shown in the imageat the right. Results：Measurements were performed on top and on the door of the car. The fitting was applied in the 1400-1600 nm spectral range. Reflectance and fitted spectra and the calculated thicknesses are illustrated in theimages below. The thickness on top measured at point 1 = 41.6um and at point 2 = 39.8um and on the doormeasured at point 1 = 45um and at point 2 = 44.9um. FR-tools in that particular spectral range could beemployed for non-destructive fast & accurate measurement of the thickness of that layer and contributesignificantly in qualityassurance. 就 lastar) EE一 HHE Figure 1： Reflectance and fitted spectra from theclear coat on top of the car at point 1. Thickness=41.6um Figure 2： Reflectance and fitted spectra from theclear coat on top of the car at point 2.Thickness= 39.8um Figure 3： Reflectance and fitted spectra from theclear coat on door of the car at point 1.Thickness= 45.0um Figure 4： Reflectance and fitted spectra from theclear coat on door of the car at point 2.Thickness= 44.9um 汽车透明漆层厚度的测定导言：透明涂层的厚度均匀性（保护汽车漆层的层），是汽车最终表面质量的关键。因此，厚度测定是汽车喷漆过程中必须监测的一个重要参数。在本应用说明中，使用参数fr工具演示了二手车不同部位透明涂层厚度的测量。方法：采用FR系列产品，在850-1700nm光谱范围内测定透明涂层的厚度。为了确定油漆厚度的均匀性，在二手车的不同位置进行了测量。结果：在汽车顶部和车门上进行了测量。该装置在1400-1600纳米光谱范围内使用。反射和拟合光谱以及计算厚度如下图所示。顶部厚度在点1=41.6um和点2=39.8um处测量，门上厚度在点1=45um和点2=44.9um处测量。在特定光谱范围内的fr工具可用于无损快速和准确测量该层的厚度，并对质量保证做出显著贡献。FR的工具基于白光反射光谱(Reports) 。准确同步的厚度测量及薄膜的折射率-一个广泛的多样化的应用范围广泛的光电特性的工具和整体解决方案，如:半导体、有机电子、聚合物、涂料和涂料、光伏、生物传感、化学传感...