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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 17, Iss. 7 — Jul. 1, 2000
  • pp: 1341–1347

Method to determine temperature distribution and intrinsic emissivity of a cavity

Yoshiko Ohwada, Fumihiro Sakuma, and Laina Ma  »View Author Affiliations

JOSA A, Vol. 17, Issue 7, pp. 1341-1347 (2000)

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A method is presented to determine simultaneously the temperature distribution and the intrinsic emissivities of a cavity surface when radiance distributions along the cavity wall for two wavelengths are given. The intrinsic emissivity and reflection characteristics are assumed not to depend on position on the cavity wall. The intrinsic emissivity and reflection characteristics giving the smallest difference between calculated temperature distributions for the two wavelengths are found. The values found and thus the temperature distributions are verified to be close to the true ones. The method is examined on a cylindrocone by a simulation and applied to radiance temperature distributions measured on a commercially available double cone.

© 2000 Optical Society of America

OCIS Codes
(080.2720) Geometric optics : Mathematical methods (general)
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(120.5700) Instrumentation, measurement, and metrology : Reflection
(120.6780) Instrumentation, measurement, and metrology : Temperature

Original Manuscript: August 23, 1999
Revised Manuscript: February 7, 2000
Manuscript Accepted: February 7, 2000
Published: July 1, 2000

Yoshiko Ohwada, Fumihiro Sakuma, and Laina Ma, "Method to determine temperature distribution and intrinsic emissivity of a cavity," J. Opt. Soc. Am. A 17, 1341-1347 (2000)

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