拉曼光谱技术检验黑色签字笔添改字迹研究

The Study of Raman Spectroscopic Technique on Changed Handwriting Written by Black Signature Pen

本工作为鉴别黑色签字笔添改字迹变造文件提供一种无损、便捷、有效的检验方法。拉曼光谱检测变造字迹实验,并根据黑色签字笔书写色料类型的不同,分别说明不同情况的字迹添改。拉曼光谱技术能够有效检验出使用不同签字笔添改的笔画,但用炭黑型签字笔添改炭黑型签字笔书写字迹除外。拉曼光谱技术应用于添改字迹的鉴别有方法简单,易操作的特点。

This work provides a non-destructive, convenient and effective testing method to identi- fy the added or altered handwriting by black signature pens. The inspection process is conducted by Raman experiment, and the changed handwritings made by black pens with different types of pigments are classified, showing that Raman spectroscopy technique is able to identify different types of signature pens but carbon black. The Raman spectroscopy technique can be used to identi- fy the changed handwriting with the advantages of the convenient preparation of sample and the easy and fast operation of instrument measurement.