Image profile alignment applied to optical gauging in a bar mill

Eric Pickett

doi:10.1117/12.2294680

1 July 1990 Image profile alignment applied to optical gauging in a bar mill

Eric Pickett

Proceedings Volume 1230, International Conference on Optoelectronic Science and Engineering '90; 123017 (1990) https://doi.org/10.1117/12.2294680
Event: The Marketplace for Industrial Lasers 1990, 1990, Chicago, IL, United States

Abstract

In a steel bar rolling mill, billets are run through a series of rolling stands to produce steel bars with various cross-sectional shapes. An optical gauge is used to provide on-line measurements for the purpose of statistical process control of the mill operation. The orientation of the bar in the gauge must be determined in order to accurately infer critical dimensions. An algorithm is developed for aligning the optical image to remove any bar twist. Determination of bar dimension from the aligned measurement sequence with an exact interpolation technique is also described.

Citation Download Citation

Eric Pickett "Image profile alignment applied to optical gauging in a bar mill", Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 123017 (1 July 1990); https://doi.org/10.1117/12.2294680

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