OPTICAL METHODS FOR SHAPE MEASUREMENT

Phase reflection—a new solution for the detection of shape defects on car body sheets

[+] Author Affiliations
Roland Ho¨fling, Petra Aswendt, Reimund Neugebauer

Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Str. 88, D-09126 Chemnitz, Germany

Opt. Eng. 39(1), 175-182 (Jan 01, 2000). doi:10.1117/1.602349
History: Received Aug. 5, 1999; Accepted Aug. 30, 1999
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Abstract

This paper describes the development of a highly sensitive optical profilometer well suited for the detection of faults with millimeter lateral dimensions and a micrometer depth. The objective is to meet the requirements of the automotive industry. The principle combines the high sensitivity of reflection techniques with the evaluation potential of phase shifted fringe projection. After a mathematical description the paper gives a number of experimental results with both reference surfaces and original sheet metal parts. © 2000 Society of Photo-Optical Instrumentation Engineers.

© 2000 Society of Photo-Optical Instrumentation Engineers

Topics

Reflection

Citation

Roland Ho¨fling ; Petra Aswendt and Reimund Neugebauer
"Phase reflection—a new solution for the detection of shape defects on car body sheets", Opt. Eng. 39(1), 175-182 (Jan 01, 2000). ; http://dx.doi.org/10.1117/1.602349


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