利用红外显微镜无损检测圆珠笔油墨色痕的研究

在这个研究中,红外显微镜聚焦功能得到了充分验证。该研究采用的检测方法是通过红外显微镜将红外光斑直接聚焦在样品表面,采集其红外光谱。根据样品红外吸收峰的个数、位置、强度及形状进行定性分析,以达到区分相同颜色不同品牌的圆珠笔油墨色痕的研究目的。研究结果表明,采用的检测方法可有效区分相同颜色不同品牌的圆珠笔油墨色痕。而且该检测方法具有无损检测特点,保持了物证的原样性。

A Study on Nondestructive Testing of Ballpoint Ink Marks by Infrared Microscope

In this study,the focusing function of infrared microscope has been fully authenticated.The testing method adopted in the study is to directly focus infrared light spot on the sample’s surface by infrared microscope in order to collect its spectra.The research purpose is to distinguish ink marks of different brand ballpoints with the same color by making a qualitative analysis to the number,position,intensity and shape of the samples’ IR absorption peaks.Studies show that the testing method can effectively distinguish ink marks of different brand ballpoints with the same color and keep the intactness of physical evidence with the characteristic of nondestructive testing.