Accession Number:

ADA516830

Title:

Wave Front Sensor for Solar Concentrator Control

Descriptive Note:

Journal article (postprint)

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE

Report Date:

2009-10-01

Pagination or Media Count:

14.0

Abstract:

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.

Subject Categories:

  • Astrophysics
  • Electric Power Production and Distribution

Distribution Statement:

APPROVED FOR PUBLIC RELEASE