The optical quality of concentrators has a direct impact on the thermal efficiency of
concentrating solar power plants. There is a need to evaluate the quality of the mirrors …

In typical reflection-based solar concentrators, surface slope error mainly causes the
reflected ray to deviate from the specular reflection direction and eventually from a target …

The Fringe Reflection is a robust and non-contact technique for optical measurement and
specular surface characterization. The periodic alternation between dark and light cycles of …

Accurate canting, or alignment, of heliostat facets is critical to the optical success of CSP
tower systems. Canting accuracy for large fields must typically be on the order of 0.25 mrad …

The optical characteristics of solar concentrators are key factors influencing the overall
efficiency of solar power plants. For instance, heliostats need to be evaluated prior to …

We present a null-screen design for testing the shape quality of the reflecting surface of a
parabolic trough solar collector (PTSC). This technique is inexpensive, the whole surface is …

Solar dishes allow us to obtain highly concentrated solar fluxes used to produce electricity or
feed thermal processes/storage. For practical reasons, the reflecting surface is composed by …

Concentrating solar power systems currently have a high capital cost when compared with
other energy generating systems. The solar energy is captured in the form of thermal energy …

This paper presents the first experimental results obtained with the four cameras backward
gazing method for measuring the optomechanical errors of solar concentrating surfaces in …

This paper describes a sun backward gazing method with multiple cameras optimized for
fast and accurate control of solar concentrators in operating conditions. For Concentrated …