主管：中华人民共和国司法部
主办：司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N
中国司法鉴定

中国司法鉴定 ›› 2012 ›› Issue (2): 48-51.

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影响真空镀膜显现手印效果的因素分析

李孝君1，刘 丹2，王鸿飞2   

  1. 1.公安部物证鉴定中心，北京 100038； 2.中国人民公安大学，北京 100038
  • 收稿日期:2011-07-08 出版日期:2012-03-15 发布日期:2022-07-12
  • 作者简介:李孝君（1982-），男，研究实习员，主要从事手印检验技术与手印学的研究。
  • 基金资助:

    公安部应用创新计划项目（2009YYCXGAES130）

Factors Affecting the Development of Latent Fingerprints by Vacuum Metal Deposition

LI Xiao-jun1， LIU Dan2， WANG Hong-fei2，   

  1. 1. Institute of Forensic Science， Ministry of Public Security， Beijing 100038， China； 2. Chinese People's Public Security University， Beijing 100038， China
  • Received:2011-07-08 Published:2012-03-15 Online:2022-07-12

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被引次数

4

摘要：

目的 考查真空镀膜技术在手印显现方面的应用。方法 从影响真空镀膜法显现手印的因素展开，重点分析了喷镀距离、金的用量、客体悬挂角度、锌的蒸发电流和时间等对手印显现的影响。结果 条件优化后可以增强手印纹线的立体感，改善金膜、锌膜在手印纹线和客体背景的分布情况，使显出的手印纹线反差明显。结论 确定真空镀膜显现常见非渗透性客体上汗潜手印的最佳操作条件。

关键词: 真空镀膜, 手印显现, 条件优化

Abstract:

Objective The application of vacuum metal deposition in the development of latent fingerprints was investigated. Methods Factors affecting the developing result， including the spraying distance， the amount of gold， the hanging position of the objects， the current and time of the zinc evaporation were studied. Results With optimized conditions， the three-dimensional ridges were enhanced， and the distribution of gold and zinc film between hand ridges and background were improved， which increased the contrast of the latent fingerprints. Conclusion The best conditions to develop latent fingerprints by vacuum metal deposition are determined.

Key words: vacuum metal deposition, development of latent fingerprint, optimization

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