同类纸张不同生产时间的检验

Inspection of Production Date for a Same Kind of Paper

用荧光分光光度法对纸张的荧光特性进行了研究。根据其激发光谱、发射光谱和同步扫描光谱的特性，鉴别了同一生产厂家不同生产时期，外观相近的同类纸。另外将数理统计中的假设检验理论及计算机FOXPRO程序设计对纸张中的荧光强度进行t检验处理，提高了检测速度及结果的可信度。为纸张的年代区分提供了科学依据。

This article describes the research on the fluorescence property of paper by means offluorescein spetrophotometry. The production date of the same kind of paper, with similar appearance by the same manufacturer, is inspected in accordance with its excitation spectrum, emission spectrum and sgnchronscan spectrum. Furthermore, the inspection speed and reliability areelevated by computer data processing, comparing the inspected value with that from statistics.The approach is characterized in nondestructive and easy to manipulate.