Abstract
The present disclosure describes non-intrusive optical (NIO) characterization methods which efficiency measures optical errors (such as mirror surface slope error, mirror canting error, and heliostat tracking error) of a heliostat field. The methods utilize photogrammetry and deflectometry to analyze an image taken of a heliostat to determine optical errors and increase the amount of solar energy delivered by the heliostat to the receiver.
| Original language | American English |
|---|---|
| Patent number | 11,250,587 B2 |
| Filing date | 15/02/22 |
| State | Published - 2022 |
NREL Publication Number
- NREL/PT-5700-82165
Keywords
- collinearity equations
- deflectometry
- optical efficiency
- photogrammetry
- plurality of pixels