Novel Wave Front Method Used for Tracking Terrestrial Concentrator Focal Spot Location

摘要

This paper presents a new sensing method for tracking terrestrial concentrator focal spot location. The new method utilizes the shape and mirror- like surfaces of the absorber as a wave front sensor. The paper begins with a discussion of wave front sensing and how it can be used in optical systems to measure phase differences in light waves across an aperture. The wave front sensing method is then modified from an aperture or lens system into a mirror system. After the method wa-s developed for mirrors, it was developed into a method of detecting focal spot location errors.