Solar tracking control system using shadow detection

Details Solar tracking control system using shadow detection Solar tracking control system using shadow detection

1975-12-03

1976-12-07

Smith, Alfred E.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250209, 350152, G01J 120

Patent

active

039964604

ABSTRACT:
A control system for radiation tracking apparatus comprises:
A. a shadow box having a window,
B. four photo sensors located within the box to receive incident radiation passing through the window,
C. first and second sensors respectively having upper and lower locations to provide outputs controlling elevational tracking movement of said apparatus, and
D. third and fourth sensors respectively having left and right locations to provide outputs controlling azimuthal tracking movement of said apparatus.

REFERENCES:
patent: 3515594 (1970-06-01), Samuels
patent: 3780966 (1973-12-01), Newcomb, Jr. et al.
patent: 3917942 (1975-11-01), McCay

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