Coherent Optical Measurement Of Surface Roughness And Its Application In The Paper Industry

P. Richter; E. Lorincz; I. Peczeli; F. Engard

doi:10.1117/12.935385

26 October 1983 Coherent Optical Measurement Of Surface Roughness And Its Application In The Paper Industry

P. Richter, E. Lorincz, I. Peczeli, F. Engard

Proceedings Volume 0398, Industrial Applications of Laser Technology; (1983) https://doi.org/10.1117/12.935385
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

A coherent optical method to measure the surface characteristics of rolling material e.g. paper on line without mechanical contact in industrial enviroument is presented. This method is based on the optical heterodyne detection of light scattered into a single radiation mode by the rough surface. The detection is followed by an appropriate signal processing that makes characterization of the surface smoothness by parameters called "correlation lengths" indicating the average size of uniform surface elements. These parameters show good correlation with other, widely used static surface roughness measurement methods. Furthermore they gi're the possibility of deeper insight into the surface structure of different types of paper.

Citation Download Citation

P. Richter, E. Lorincz, I. Peczeli, and F. Engard "Coherent Optical Measurement Of Surface Roughness And Its Application In The Paper Industry", Proc. SPIE 0398, Industrial Applications of Laser Technology, (26 October 1983); https://doi.org/10.1117/12.935385

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