熱工学の実在表面の熱ふく射性質の全ぼうを測定するスペクトル装置の開発(熱工学,内燃機関,動力など)

概要

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In this work we develop a new spectrophotometer system for measuring thermal radiation characteristics of real surfaces of thermal engineering entirely. This system measures transition of spectra of normal incidence hemispherical reflectance R_<NH>, normal incidence specular reflectance R_<NN>, normal incidence diffuse reflectance R_<ND>, normal absorptance A_N and normal emittance ε_N of real surfaces in a near-ultraviolet through infrared region of wavelength 0.30〜11μm simultaneously and repeatedly with a cycle time of 6s. The system is applied to measure the spectrum transition of the reflectances, absorptance and emittance of a nickel surface which is prepared as a clean optically smooth surface and is oxidized in high-temperature air to be changed to an oxidized rough real surface. Microscopic mechanisms of the spectrum transition are discussed, to illustrate the ability of the developed spectrophotometer system for thermal engineering.
2010-10-25