Surface Quality Inspection for Vehicle Front Panel Using Polarized Laser Inspection Method

Paper #:
  • 2017-01-0395

Published:
  • 2017-03-28
Citation:
Xie, X., Zeng, D., Zhang, B., Li, J. et al., "Surface Quality Inspection for Vehicle Front Panel Using Polarized Laser Inspection Method," SAE Technical Paper 2017-01-0395, 2017, https://doi.org/10.4271/2017-01-0395.
Pages:
4
Abstract:
Vehicle front panel is an interior part which has a major impact on the consumers’ experience of the vehicles. To keep a good appearance during long time aging period, most of the front panel is designed as a rough surface. Some types of surface defects on the rough surface can only be observed under the exposure of certain angled sun light. This brings great difficulties in finding surface defects on the production line. This paper introduces a novel polarized laser light based surface quality inspection method for the rough surfaces on the vehicle front panel. By using the novel surface quality inspection system, the surface defects can be detected real-timely even without the exposure under certain angled sun light. The optical fundamentals, theory derivation, experiment setup and testing result are shown in detail in this paper.
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