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Contour measurements with lasers

: Noll, R.; Aehling, H.; Seiwert, S.; Brandenburg, W.

Automotive Automation Ltd., Croydon:
25th International Symposium on Automotive Technology and Automation 1992. Proceedings
Croydon, 1992
pp.405-410 : Abb.,Tab.
International Symposium on Automotive Technology and Automation (ISATA) <25, 1992, Florence>
Conference Paper
Fraunhofer ILT ()
cross section; fringe projection; interferometric method; micrometer-accuracy; shape; triangulation; workpiece

The laser enables a variety of different methods to measure the shape or the cross section of an object. From these the interferometric methods are characterized by accuracies up to the nanometer- range which is only of interest for the inspection of high-precision parts. With respect to specifications of typical automobile components micrometer-accuracies are aufficient. Suitable laser-based contour measuring techniques are presented in this paper.