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金属镀层的厚度一般是用镀层测厚仪或涂层测厚仪来测量的,但是镀层测厚仪目前还没有校准规范,而涂层测厚仪的检定,JJG 818—2005《磁性、电涡流式覆层厚度测量仪检定规程》是用非金属厚度片作为标准件,故而与被测件的介质不一致,测量结果的可靠程度无法确定,文章介绍了在量块上镀上不同的金属介质,用常用端度计量仪器确定介质厚度,并对其进行不确定度评定,以及用来校准镀层测厚仪的方法。
The thickness of the metal coating is generally measured by coating thickness gauge or coating thickness gauge, but the coating thickness gauge is currently not calibrated, and the coating thickness gauge test, JJG 818-2005 “magnetic, eddy current Coating thickness gauge test procedures ”is non-metallic thickness of the film as a standard piece, and thus the measured medium is inconsistent, the reliability of the measurement results can not be determined, the article describes the amount of the block coated with different metal media, The media thickness is determined using a common end metrology tool and its uncertainty is assessed and the method used to calibrate the plating thickness gauge.