文检仪显现同种同色掩盖字迹条件的初探
发布时间：2018-09-18 15:29
【摘要】：目的研究运用文检仪显现同种同色掩盖字迹的显出条件。方法以黑色签字笔为例,依据不同型号笔的油墨在不同光源下的荧光性质和红外吸收能力的差异,利用文检仪进行分析检验。结果只有在一定条件下被掩盖字迹才能被显出。结论在LUMI=IR红外荧光(兰光)下,只能显现激发荧光的油墨掩盖不能激发荧光的油墨的字迹和激发荧光能力弱的油墨掩盖激发荧光能力强的油墨的字迹;在红外吸收光和365nm长波紫外表面光下,只能显现颜色浅的油墨掩盖颜色深的油墨的字迹。
[Abstract]:Objective to study the display conditions of homochromatic masked handwriting by using a document detector. Methods taking the black pen as an example, according to the difference of the fluorescence property and infrared absorption ability of the ink of different type pen under different light source, the paper uses the document detector to carry on the analysis and examination. The result is that only under certain conditions can the handwriting be shown. Conclusion under the condition of LUMI=IR infrared fluorescence (blue light), only the ink masking which excites the fluorescence can not excite the writing of the ink which can not excite the fluorescence and the ink with weak excitation ability to cover up the handwriting of the ink with strong fluorescence ability. In infrared absorption and 365nm UV surface light, can only show light color ink cover deep ink handwriting.
【作者单位】： 中国人民公安大学;公安部物证鉴定中心;常熟市公安局刑事科学技术室;
【分类号】：D918.92
本文编号：2248338
[Abstract]:Objective to study the display conditions of homochromatic masked handwriting by using a document detector. Methods taking the black pen as an example, according to the difference of the fluorescence property and infrared absorption ability of the ink of different type pen under different light source, the paper uses the document detector to carry on the analysis and examination. The result is that only under certain conditions can the handwriting be shown. Conclusion under the condition of LUMI=IR infrared fluorescence (blue light), only the ink masking which excites the fluorescence can not excite the writing of the ink which can not excite the fluorescence and the ink with weak excitation ability to cover up the handwriting of the ink with strong fluorescence ability. In infrared absorption and 365nm UV surface light, can only show light color ink cover deep ink handwriting.
【作者单位】： 中国人民公安大学;公安部物证鉴定中心;常熟市公安局刑事科学技术室;
【分类号】：D918.92
【二级参考文献】
相关期刊论文 前1条
1 黄建同;黑色笔迹与文件鉴定[J];中国人民公安大学学报(自然科学版);2005年03期
【相似文献】
相关期刊论文 前5条
1 李淑英,车庆远,邹宁;黑色签字笔油种类的检验研究[J];广东公安科技;1999年03期
2 李继民;常见黑色签字笔油墨种类鉴别的研究[J];广东公安科技;2002年03期
3 李继民;TLC法鉴别黑色签字笔油墨种类的研究[J];公安大学学报(自然科学版);2002年06期
4 许英健,史晓凡,王彦吉,李心倩,王景翰,张振铎;高效液相色谱法分析黑色签字笔字迹色痕[J];中国人民公安大学学报(自然科学版);2004年03期
5 史晓凡,王彦吉,占成茂,陈文胜,张海鹏;TLC法鉴别签字笔字迹色痕的种类[J];中国人民公安大学学报(自然科学版);2005年03期
，本文编号：2248338
本文链接：https://www.wllwen.com/falvlunwen/fanzuizhian/2248338.html
