Vison guidance of a laser profiler for monitoring refractory lining wear in steel mills

Heikki J. Ailisto; Risto S. Mitikka; Ilkka Moring; Hannu Jokinen

doi:10.1117/12.220905

13 September 1995 Vison guidance of a laser profiler for monitoring refractory lining wear in steel mills

Heikki J. Ailisto, Risto S. Mitikka, Ilkka Moring, Hannu Jokinen

Proceedings Volume 2598, Videometrics IV; (1995) https://doi.org/10.1117/12.220905
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

A laser rangefinder-based optical coordinate measurement system used for monitoring refractory lining wear in steel mills has been equipped with a vision system to improve its operative and performance characteristics. The 3D shape of the refractory lining is measured after renewal at the beginning of a campaign and these data are stored as a reference. During the campaign the lining is measured and the results are compared against the reference data in order to minimize risks and optimize lining life. To make the results measured at different times comparable, they must be accurately and reliably transformed to the same coordinate system. This makes the coordinate system setup phase critical for the success of the lining wear monitoring. Other important aspects are the amount of expensive process time taken up by the measurements and work safety aspects. The experimental vision system has been tesetd for automating the corrdinate system setup phase, and improved repeatability and faster operation compared with manual setup was achieved. Tentative tests at a steel mill proved promising, and further development of the vision system is going on.

Citation Download Citation

Heikki J. Ailisto, Risto S. Mitikka, Ilkka Moring, and Hannu Jokinen "Vison guidance of a laser profiler for monitoring refractory lining wear in steel mills", Proc. SPIE 2598, Videometrics IV, (13 September 1995); https://doi.org/10.1117/12.220905

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