Dual-axis sun tracker sensor based on tetrahedron geometry

Abstract This paper describes a new concept for solar detection sensor implementation in photovoltaic dual-axis sun tracker systems. The sensor uses only three units of identical light-dependent-resistors arranged in a tetrahedron and is able to track the source position of the sun or the strongest intensity of visible light. The prototype has been built and tested, resulting in a wide Field of View (289.4°) and minimum error. When this design is compared to other previous types of sun tracking sensors, it has great advantages in terms of sensor quantity, accuracy, effectiveness, and Field of View.

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