BS EN ISO 21968-2005 金属和非金属基材的非磁性金属覆层.覆层厚度测量.相敏涡流法

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【英文标准名称】:Non-magneticmetalliccoatingsonmetallicandnon-metallicbasismaterials-Measurementofcoatingthickness-Phase-sensitiveeddy-currentmethod
【原文标准名称】:金属和非金属基材的非磁性金属覆层.覆层厚度测量.相敏涡流法
【标准号】:BSENISO21968-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-12-05
【实施或试行日期】:2005-12-05
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:基底材料;覆层厚度;覆层;尺寸测量;尺寸;涡流法;涡流试验;电性能;薄板材料;层厚度测量;层;材料;材料试验;测量;测量精度;测量仪器;测量技术;金属覆层;金属的;金属材料;金属;无损;无损检验;非磁性;非金属覆层;非金属;特性;规范(验收);表面覆层;表面保护层;表面;试验;厚度
【英文主题词】:
【摘要】:ThisInternationalStandarddescribesamethodofusingphase-sensitiveeddy-currentinstrumentsfornon-destructivemeasurementsofthethicknessofnon-magneticmetalliccoatingsonmetallicandnon-metallicbasismaterials,suchas:a)zinc,cadmium,copper,tinorchromiumonsteel;b)copperorsilveroncompositematerials.Thephase-sensitivemethodcanbeappliedwithoutthicknesserrorstosmallersurfaceareasandtostrongersurfacecurvaturesthantheamplitude-sensitiveeddy-currentmethoddescribedinISO2360[1],andislessaffectedbythemagneticpropertiesofthebasismaterial.However,thephase-sensitivemethodismoreaffectedbytheelectricalpropertiesofthecoatingmaterials.Whenmeasuringmetalliccoatingsonmetallicbasismaterials,theproductofconductivityandpermeability(σ,μ)ofoneofthematerialsshouldbeatleastafactorof1,5timestheproductofconductivityandpermeabilityfortheothermaterial.Non-ferromagneticmaterialshavearelativepermeabilityof1.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:22P;A4
【正文语种】:英语