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Proceedings Paper

Automatic sorting installation based on two CCD cameras for measuring gauge diameter and ellipticity of pulp extractors
Author(s): Dmitry L. Ovchinnikov; Rishad A. Akhtiamov; Nikolai V. Dorogov; Oleg G. Morozov; Ilnur I. Nureev; Alfred Yu Yusupov
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Paper Abstract

The concrete problem, which decision is presented in given paper, consists in measuring of pulp extractor diameter apart 1 mm from its operating end and their automatic sorting. The range of measuring sizes is 180-260 micrometers , necessary measurement accuracy is 1 micrometers . The sorting is carried out on 8 subranges in 10 micrometers . The ellipticity of a pulp extractor is analyzed additionally and used as a qualitative index. The comparative analysis of different tools on metrology performances and cost problems of their embodying has allowed to select television system, as the class on the basis of which is necessary to build a required system. Problems decided at built-up of a system are: use of short focus lenses with major augmentation for shaping pulse duration solved for measuring to within 1 micrometers error; the account of lenses aberrations influence on a measuring error; use of cameras with a size of pixels in 0.7-1 micrometers ; definition of the line number, which corresponds to a gauge diameter of a pulp extractor; holding of a statistical average and extrapolation of data of measuring; the analysis of system variants with the purpose of its simplification and cost decreasing.

Paper Details

Date Published: 22 December 2000
PDF: 7 pages
Proc. SPIE 4309, Videometrics and Optical Methods for 3D Shape Measurement, (22 December 2000); doi: 10.1117/12.410887
Show Author Affiliations
Dmitry L. Ovchinnikov, Tatincom Computers (Russia)
Rishad A. Akhtiamov, Tupolev State Technical Univ. (Russia)
Nikolai V. Dorogov, Tupolev State Technical Univ. (Russia)
Oleg G. Morozov, Tupolev State Technical Univ. (Russia)
Ilnur I. Nureev, Tupolev State Technical Univ. (Russia)
Alfred Yu Yusupov, Joint Stock Co. Polymer Production Plant (Russia)

Published in SPIE Proceedings Vol. 4309:
Videometrics and Optical Methods for 3D Shape Measurement
Sabry F. El-Hakim; Armin Gruen, Editor(s)

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