加热因素对激光打印文件朱墨时序立体显微特征变化的影响研究

Research on the Influence of Heating Factors on the Stereoscopic Microscopic Characteristics of Sequence of Crossed Stroke and Stamp Impression in Laser Printed Documents

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归属学者:

张凌燕

归属院系:

刑事侦查学院

作者:

张凌燕1 ;钟玲 ;林佳景

摘要:

目的 研究加热因素对朱墨时序立体显微特征变化的影响。方法 各组实验样本经不同温度加热处理后,运用显微检验法观察交叉、非交叉部位碳粉蜂窝状特征的变化,提取其灰度值进行统计分析其变化规律,并阐述产生这些特征变化的机理。结果 交叉部位和非交叉部位字迹碳粉蜂窝状的立体显微特征随温度越高变化越明显,如果是先字后印,高温会导致交叉部位表面红色斑点转变为红色晕染特征,如果是先印后字,则任何时候交叉部位无红色。结论 加热会导致朱墨时序立体显微特征的变化,但一般情况下不影响时序的判定。

语种:

中文

出版日期:

2023-02-15

学科:

法学; 物理学

提交日期

2023-03-27

引用参考

张凌燕;钟玲;林佳景. 加热因素对激光打印文件朱墨时序立体显微特征变化的影响研究[J]. 中国人民公安大学学报(自然科学版),2023(01):21-29.

全文附件授权许可

知识共享许可协议-署名

  • dc.title
  • 加热因素对激光打印文件朱墨时序立体显微特征变化的影响研究
  • dc.contributor.author
  • 张凌燕;钟玲;林佳景
  • dc.contributor.author
  • ZHANG Lingyan;ZHONG Ling;LIN Jiajing;School of Criminal Investigation, Southwest University of Political Science and Law
  • dc.contributor.affiliation
  • 西南政法大学刑事侦查学院
  • dc.publisher
  • 中国人民公安大学学报(自然科学版)
  • dc.publisher
  • Journal of People's Public Security University of China(Science and Technology)
  • dc.identifier.year
  • 2023
  • dc.identifier.issue
  • 01
  • dc.identifier.volume
  • v.29;No.115
  • dc.identifier.page
  • 21-29
  • dc.date.issued
  • 2023-02-15
  • dc.language.iso
  • 中文
  • dc.subject
  • 加热;立体显微特征;朱墨时序;灰度值;铺展
  • dc.subject
  • heating;stereoscopic microscopic characteristics;sequence of crossed stroke and stamp impression;gray values;spreading
  • dc.description.abstract
  • 目的 研究加热因素对朱墨时序立体显微特征变化的影响。方法 各组实验样本经不同温度加热处理后,运用显微检验法观察交叉、非交叉部位碳粉蜂窝状特征的变化,提取其灰度值进行统计分析其变化规律,并阐述产生这些特征变化的机理。结果 交叉部位和非交叉部位字迹碳粉蜂窝状的立体显微特征随温度越高变化越明显,如果是先字后印,高温会导致交叉部位表面红色斑点转变为红色晕染特征,如果是先印后字,则任何时候交叉部位无红色。结论 加热会导致朱墨时序立体显微特征的变化,但一般情况下不影响时序的判定。
  • dc.description.abstract
  • Objectives: the influence of heating factors on the stereoscopic microscopic characteristics of sequence of crossed stroke and stamp impression was explored. Methods: the experimental samples in each group were heated at different temperatures, then the changes of honeycomb features of carbon powder at the crossed and non-crossed parts were observed by microscopic examination. The gray values were extracted for statistical analysis, and the mechanism of these changes was described. Results: the stereoscopic microscopic features of carbon power in handwriting at the crossed and non-crossed parts changed more obviously with the higher temperature. If printing was first applied, the red spots on the surface of the crossed parts would change into red halo features by high temperature. If stamping was first applied, the crossed parts would not be red at any time. Conclusion: heating can change the stereoscopic microscopic characteristics of sequence of crossed stroke and stamp impression, but generally it does not affect the determination of the sequence.
  • dc.description.sponsorshipPCode
  • KJcxZD2020016;20212021XZXS-140;20222022-XSZCXY-YJS007
  • dc.description.sponsorship
  • 重庆市教委“成渝地区双城经济圈建设”科技创新重点项目(KJcxZD2020016);西南政法大学2021年度学生科研创新项目(2021XZXS-140);西南政法大学2022年度博士科研创新课题(2022-XSZCXY-YJS_007)
  • dc.identifier.CN
  • 11-3933/N
  • dc.identifier.issn
  • 1007-1784
  • dc.identifier.if
  • 0.372
  • dc.subject.discipline
  • D918.92
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