A Laser Rangefinder For Hot Surface Profiling Measurements

Kari Maatta; Juha Kostamovaara; Risto Myllyla

doi:10.1117/12.968857

16 January 1988 A Laser Rangefinder For Hot Surface Profiling Measurements

Kari Maatta, Juha Kostamovaara, Risto Myllyla

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968857
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

This paper discusses the construction and capabilities of a laser rangefinder system for profiling measurements on hot surfaces (T < 1400°C), especially measurement of the thickness profile of the fire-brick sheathing of a converter. The rangefinder consists of an opto-mechanical measuring head, electronics unit and hand-held computer. Special attention is paid to maximizing the inherently low signal-to-noise ratio typical of measurements of this kind. In addition, an efficient time interval measurement principle is employed which enables rapid determination of a single 3 D point. The measured resolution of the system in a real operating environment is a few millimetres with a measuring time of less than 1 second per measurement point. The accuracy of the system is better than 1 cm in a measurement range of 6 - 17 metres.

Citation Download Citation

Kari Maatta, Juha Kostamovaara, and Risto Myllyla "A Laser Rangefinder For Hot Surface Profiling Measurements", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968857

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