Translator Disclaimer
Paper
20 September 1989 A Mess Of Cavity Emissivities
Author Affiliations +
Abstract
Three types of cavity emissivities are described based on wavelength, two types based on temperature, and five types based on geometry. Nonisothermal cavities are shown to be best represented by a two-temperature emissivity while most other items, including isothermal cavities, are customarily represented by a one-temperature emissivity. Radiance based emissivity and local hemispherical emissivity are recommended for making cavity evaluations and comparisons, while the hemispherical emissivity of the cavity aperture and a cavity emissivity that is based on detector considerations are shown to be faulty.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frederick O. Bartell "A Mess Of Cavity Emissivities", Proc. SPIE 1110, Imaging Infrared: Scene Simulation, Modeling, and Real Image Tracking, (20 September 1989); https://doi.org/10.1117/12.960748
PROCEEDINGS
4 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top