Direct ray solar meter and method

Details Direct ray solar meter and method Direct ray solar meter and method

1983-05-26

1986-09-02

McGraw, Vincent P.

Optics: measuring and testing

Photometers

Photoelectric

356222, G01J 142

Patent

active

046092889

ABSTRACT:
Six silicon solar cells are arranged in three pairs on three mutually perpendicular planes. One cell of each pair will be exposed to both the direct rays of the sun and the diffuse light radiation incident from the same direction, depending upon the orientation of the device and the time of day. The other cells of each pair will be exposed only to the diffuse radiation on their respective planes. The differences in the measured radiation on each plane are squared, summed, and the square root of the sum then taken to determine the actual value of the direct rays of the sun.

REFERENCES:
patent: 1546264 (1925-07-01), Story
patent: 2913583 (1959-11-01), Regnier et al.
patent: 3891326 (1975-06-01), Volz
patent: 4008391 (1977-02-01), Henderson
patent: 4110049 (1978-08-01), Younskevicius
patent: 4179612 (1979-12-01), Smith
patent: 4225781 (1980-09-01), Hammons
patent: 4316084 (1982-02-01), Stout
"Evaluation of Spatial Illuminance in Buildings", Bansal et al, Energy and Buildings, 8-1979, pp. 179-184.
"A Sunshine Monitor with Electrical Output and without Moving Parts", Thornblad, Journal of Physics E., vol. 8, No. 9, 6-1975, pp. 481-486.

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