1 September 1996 Integrating sphere method for determining the effective spectral emissivity of superalloys at high temperatures using a single wavelength pyrometer
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Abstract
A method that employs an integrating sphere and a singlewavelength (1.6-µm) pyrometer for measuring the spectral effective emissivities of superalloys in the temperature range (~650 to 1050 °C) is described. The spectral effective emissivities for five superalloys, namely, MARM-247, MARM-509, CMSX-4, Inconel-718, and N-155 were measured. Correcting the pyrometer measurements for the variations in the object emissivity would reduce the uncertainty in the temperature measurements to < ± 1%.
Sami D. Alaruri, Sami D. Alaruri, Lisa Bianchini, Lisa Bianchini, Andrew Brewington, Andrew Brewington, Terry Jilg, Terry Jilg, Brad Belcher, Brad Belcher, } "Integrating sphere method for determining the effective spectral emissivity of superalloys at high temperatures using a single wavelength pyrometer," Optical Engineering 35(9), (1 September 1996). https://doi.org/10.1117/1.600839 . Submission:
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