采用激光显微拉曼光谱技术,对两年时间内的印文样本的拉曼光谱进行分析,通过已知检材的拉曼光谱数据与确切的不同时期的时间样本数据进行比对,得出QC匹配值。结果表明,可以依据QC匹配值判断印文的相对盖印时间,为印文形成时间鉴别提供一种准确、无损的检测方法。

Taking advantage of Micro-Raman spectroscopy technology,seal sample for two years are studied by the Raman.The resulting in comparative of suspect and samples which are determined time enable to provide QC matching value. By the QC matching value,we can identify the relative aging of stamp impression.Micro-Raman spectroscopy technology can be used to identify the aging of stamp impression with the advantages of the convenient preparation of sample and the easy and fast operation of instrument measurement.