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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 12, Iss. 4 — Apr. 1, 1973
  • pp: 810–817

Active Cavity Radiometer

Richard C. Willson  »View Author Affiliations


Applied Optics, Vol. 12, Issue 4, pp. 810-817 (1973)
http://dx.doi.org/10.1364/AO.12.000810


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Abstract

The active cavity radiometer (ACR) is a pyrheliometer that accurately defines the absolute radiation scale. The physics of the pyrheliometric method and the ACR approach to this method are presented in detail. A mathematical abstraction of the method is generated through a quasi-equilibrium analysis of the power balance of the ACR’s cavity detector. An error analysis is carried out on the quasi-equilibrium equation to determine the uncertainties of ACR measurements relative to the absolute radiation scale. The uncertainty of ACR measurements as a function of irradiance level is presented in graphical form.

© 1973 Optical Society of America

History
Original Manuscript: September 15, 1972
Published: April 1, 1973

Citation
Richard C. Willson, "Active Cavity Radiometer," Appl. Opt. 12, 810-817 (1973)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-12-4-810

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