Internally baffled integrating sphere cosine collector

Blake G. Crowther, Kurtis J. Thome, Stuart F Biggar, Charles J. Burkhart

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cosine collector designs based on internally baffled integrating spheres have been difficult to evaluate in the past due to the expense and difficulty of building the spheres and measuring their angular response. A Monte Carlo model has been developed that enables integrating sphere designs to be evaluated relatively quickly and efficiently. The model was applied to an integrating sphere employing an internal conical baffle. The angular response and overall throughput of the sphere as predicted by the model are presented and discussed. Construction of the sphere was recently completed and the relative angular response was measured in the field. A solar radiometer was used to determine the solar irradiance at the entrance aperture of the sphere, enabling the response of the sphere to be found as a function of the solar zenith angle. Results of the measurement are presented and compared with the model results.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages246-252
Number of pages7
Volume3117
DOIs
StatePublished - 1997
EventEarth Observing Systems II - San Diego, CA, United States
Duration: Jul 28 1997Jul 28 1997

Other

OtherEarth Observing Systems II
CountryUnited States
CitySan Diego, CA
Period7/28/977/28/97

Fingerprint

Integrating Sphere
accumulators
Baffle
Radiometer
Irradiance
Model
Throughput
baffles
zenith
Internal
Radiometers
Angle
radiometers
irradiance
entrances
Evaluate
apertures

Keywords

  • Cosine collector
  • Diffuse irradiance
  • Global irradiance
  • Integrating sphere
  • Monte Carlo modeling

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Crowther, B. G., Thome, K. J., Biggar, S. F., & Burkhart, C. J. (1997). Internally baffled integrating sphere cosine collector. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3117, pp. 246-252) https://doi.org/10.1117/12.283811

Internally baffled integrating sphere cosine collector. / Crowther, Blake G.; Thome, Kurtis J.; Biggar, Stuart F; Burkhart, Charles J.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3117 1997. p. 246-252.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Crowther, BG, Thome, KJ, Biggar, SF & Burkhart, CJ 1997, Internally baffled integrating sphere cosine collector. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3117, pp. 246-252, Earth Observing Systems II, San Diego, CA, United States, 7/28/97. https://doi.org/10.1117/12.283811
Crowther BG, Thome KJ, Biggar SF, Burkhart CJ. Internally baffled integrating sphere cosine collector. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3117. 1997. p. 246-252 https://doi.org/10.1117/12.283811
Crowther, Blake G. ; Thome, Kurtis J. ; Biggar, Stuart F ; Burkhart, Charles J. / Internally baffled integrating sphere cosine collector. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3117 1997. pp. 246-252
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