Design factors of sensors for the optical tracking systems of solar concentrators

Method of alignment of the optical axis of a heliostat tracking sensor with the main optical axis of the concentrator

“…The parallel orientation of the CHF relative to the working facets of the given heliostat is controlled by an operator in the room for observation of the autoreflexion marker [4]. It ensures that the whole spot from the entire heliostat surface will be located in the focus of the BSF in the course of its operation.…”

“…This leads to a significant deterioration of the density of the sunlight flux from the entire system of heliostats in the focal plane of the concentrator. The basic schemes of the sensors of the optical tracking systems of the concentrators are given in [4].…”