Optical Differential Solar Tracking System
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United States of America Patent
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Issued Date -
Feb 18, 2016
app pub date -
Aug 14, 2014
filing date -
Aug 14, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method of using differential optical signals to track the orientation of a solar surface or surfaces is proposed. Two dispersive prisms or gratings arranged in a mirror-symmetric fashion are used to decompose light into its constituent colors, and the gain of a differential amplifier circuit based on the difference of the frequencies of single color collimated light produced by the two prisms or gratings is used to maintain the on-sun orientation of the solar surface or surfaces. The invention provides for a high-precision, low-cost solar tracking system. Preferably, the signal processing and tracking of solar surfaces is performed by a mobile robot that travels to multiple solar surfaces to minimize cost.
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