NASA NTRS · 19800000319
Four-cell solar tracker
Abstract
Forty cm Sun tracker, consisting of optical telescope and four solar cells, stays pointed at Sun throughout day for maximum energy collection. Each solar cell generates voltage proportional to part of solar image it receives; voltages drive servomotors that keep image centered. Mirrored portion of cylinder extends acquisition angle of device by reflecting Sun image back onto solar cells.
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Berdahl, C. M.. 1981-01-01. Four-cell solar tracker. https://ntrs.nasa.gov/citations/19800000319
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