Abstract

Temperature control is extremely important in industries especially in steel industry. A pyrometer with a small aperture is required for some applications such as an induction furnace for a billet heating. A radiation pyrometer using an optical fiber has been developed and tested for this purpose. This pyrometer has a feature of an interchangeability of a sensor head and adopts a new algorithm which computes the temperature from two wavelength radiance free from emissivity change of a metal.

© 1986 Optical Society of America

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