ISO 21968:2005 金属的和非金属基础材料用非磁性金属涂料 涂料厚度测量 状态-敏感逆流法

标准编号：ISO 21968:2005

中文名称：金属的和非金属基础材料用非磁性金属涂料 涂料厚度测量 状态-敏感逆流法

英文名称：Non-magnetic metallic coatings on metallic and non-metallic basis materials — Measurement of coating thickness — Phase-sensitive eddy-current method

发布日期：2005-07

标准范围

ISO 21968:2005描述了一种使用相敏涡流仪无损测量金属和非金属基材（如钢上的锌、镉、铜、锡或铬，以及复合材料上的铜或银）上非磁性金属涂层厚度的方法。与ISO 2360中描述的振幅敏感涡流法相比，相位敏感法可以在没有厚度误差的情况下应用于更小的表面积和更强的表面曲率，并且受基材磁性的影响较小。然而，相敏法更受涂层材料电性能的影响。

ISO 21968:2005 describes a method of using phase-sensitive eddy-current instruments for non-destructive measurements of the thickness of non-magnetic metallic coatings on metallic and non-metallic basis materials such as zinc, cadmium, copper, tin or chromium on steel, as well as copper or silver on composite materials.The phase-sensitive method can be applied without thickness errors to smaller surface areas and to stronger surface curvatures than the amplitude-sensitive eddy-current method described in ISO 2360, and is less affected by the magnetic properties of the basis material. However, the phase-sensitive method is more affected by the electrical properties of the coating materials.

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