Design and construction of radiation thermometry systems under extremely nonequilibrium temperature condition

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Radiation thermometry, that is, a non-contact temperature measurement method based on the radiance measurement emitted by an object is available in various fields of science and industry. This method, however, meets difficulties when it is used under the extremely nonequilibrium temperature condition that is caused by the large temperature difference between the object and heaters such as high intensity lamps, because of strong background radiance (optical noise).I proposed a method to evaluate background radiance quantitatively by introducing a parameter defined as a noise factor and to reduce it significantly as well. Based on this method, I established a method for designing an integrated radiation thermometry system including the emissivity-compensated radiation thermometry.