Optics: measuring and testing – Angle measuring or angular axial alignment
Reexamination Certificate
2007-06-12
2010-02-23
Chowdhury, Tarifur R. (Department: 2886)
Optics: measuring and testing
Angle measuring or angular axial alignment
Reexamination Certificate
active
07667833
ABSTRACT:
A Theoretical Overlay Photographic (TOP) alignment method uses the overlay of a theoretical projected image of a perfectly aligned concentrator on a photographic image of the concentrator to align the mirror facets of a parabolic trough solar concentrator. The alignment method is practical and straightforward, and inherently aligns the mirror facets to the receiver. When integrated with clinometer measurements for which gravity and mechanical drag effects have been accounted for and which are made in a manner and location consistent with the alignment method, all of the mirrors on a common drive can be aligned and optimized for any concentrator orientation.
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Akanbi Isiaka O
Bieg Kevin W.
Chowdhury Tarifur R.
Sandia Corporation
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