Tracking signal input control for solar collector - uses photodiodes at corners of perpendicular cross carried by surface at right angles to incident radiation

摘要

The tracking signal input control has electronic and mechanical parts, the mechanical part supported by a surface (1) lying parallel to the incident solar radiation with a right angle cross (2) projecting perpendicularly from this surface. The surface (1) has a photodiode at each right angle corner of the cross (2), the opposing diodes connected in pairs. Pref. the voltage differences between the photodiodes in each pair are used to control the tracking motors for the solar collector. ADVANTAGE - Low cost tracking system.