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Presentation
Use of a scanning optical profilometer for toolmark characterization
Mechanical Engineering Conference Presentations, Papers, and Proceedings
  • L. Scott Chumbley, Iowa State University
  • David J. Eisenmann, Iowa State University
  • Max Morris, Iowa State University
  • Song Zhang, Iowa State University
  • J. Craft, Iowa State University
  • C. Fisher, Iowa State University
  • Andrew D. Saxton, Iowa State University
Document Type
Conference Proceeding
Conference
Scanning Microscopy 2009
Publication Date
5-1-2009
DOI
10.1117/12.825185
Geolocation
(36.6002378, -121.89467609999997)
Abstract

An optical profilometer has been used to obtain 3-dimensional data for use in two research projects concerning toolmark quantification and identification. In the first study quantitative comparisons between toolmarks made using data from the optical system proved superior to similar data obtained using a stylus profilometer. In the second study the ability of the instrument to obtain accurate data from two surfaces intersecting at a high angle (approximately 90 degrees) is demonstrated by obtaining measurements from the tip of a flat screwdriver. The data obtained was used to produce a computer generated "virtual tool," which was then employed to create "virtual tool marks." How these experiments were conducted and the results obtained will be presented and discussed.

Comments

This is a conference proceeding from Scanning Microscopy 2009 7378 (2009): 1, doi:10.1117/12.825185. Posted with permission.

Copyright 2009 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Copyright Owner
Society of Photo-Optical Instrumentation Engineers
Language
en
Citation Information
L. Scott Chumbley, David J. Eisenmann, Max Morris, Song Zhang, et al.. "Use of a scanning optical profilometer for toolmark characterization" Monterey, CA(2009)
Available at: http://works.bepress.com/l_chumbley/30/