Wave Front Sensor for Solar Concentrator Control
Journal article (postprint)
AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
Pagination or Media Count:
This article is the culmination of research directed into finding a system to control the position of the focal spot of paraboloid concentrators for use in terrestrial and space solar concentration applications. After a brief introduction into the area of study, the article describes how a normal Shack-Hartmann wavefront sensor is modified for use in detecting and tracking the focal spot. The first experiment describes how the wavefront sensor is to be utilized in a solar application and shows the adjustment from lenslets to cylindrical mirrors on a thruster. Next, the paper details the analysis and development of the algorithms used in locating the focal spot on a thruster absorber utilizing a correlation method and an area centroid method. The article concludes with a paragraph on suitable future work.
- Electric Power Production and Distribution