The solar trackers are devices used to orientate solar concentrating systems in order to
increase the focusing of the solar radiation on a receiver. A solar concentrator with a
medium or high concentration ratio needs to be orientated correctly by an accurate solar
tracking mechanism to avoid losing the sunrays out from the receiver. Hence, to obtain an
appropriate operation, it is important to know the accuracy of a solar tracker in regard to the
required precision of the concentrator in order to maximize the collector optical efficiency. A …