Double-cavity radiometer for high-flux density solar radiation measurements
Applied Optics, Vol. 46, Issue 12, pp. 2166-2179 (2007)
http://dx.doi.org/10.1364/AO.46.002166
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Abstract
A radiometric method has been developed, suitable for both total power and flux density profile measurement of concentrated solar radiation. The high-flux density radiation is collected by a first optical cavity, integrated, and driven to a second optical cavity, where, attenuated, it is measured by a conventional radiometer operating under a stationary irradiation regime. The attenuation factor is regulated by properly selecting the aperture areas in the two cavities. The radiometer has been calibrated by a pulsed solar simulator at concentration levels of hundreds of suns. An optical model and a ray-tracing study have also been developed and validated, by which the potentialities of the radiometer have been largely explored.
© 2007 Optical Society of America
OCIS Codes
(040.5350) Detectors : Photovoltaic
(120.3150) Instrumentation, measurement, and metrology : Integrating spheres
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(350.6050) Other areas of optics : Solar energy
ToC Category:
Detectors
History
Original Manuscript: September 20, 2006
Manuscript Accepted: October 25, 2006
Published: April 3, 2007
Citation
A. Parretta, A. Antonini, M. Armani, G. Nenna, G. Flaminio, and M. Pellegrino, "Double-cavity radiometer for high-flux density solar radiation measurements," Appl. Opt. 46, 2166-2179 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-12-2166
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