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Proceedings Paper

Sensitivity analysis in the test of a parabolic trough solar collector (PTSC) with flat null-screens
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Paper Abstract

In this work we proposed a flat null-screen method to test parabolic trough solar collectors (PTSC). The null-screen testing method measures the slope of the test surface and by a numerical integration procedure the shape of the test surface can be obtained. In this work, we show that the test can be sensitive to small surface deformations, such as those caused by sinusoidal deformations with different amplitudes and spatial periods introduced on the PTSC surface. These calculations also show that the attainable theoretical slope accuracy in the rms sense is about 0.34 mrad. This value was obtained under the assumption that is possible to achieve a 1-pixel resolution on the measurement of the position departures of the centroids of the targets of the null-screen.

Paper Details

Date Published: 27 September 2016
PDF: 8 pages
Proc. SPIE 9951, Optical System Alignment, Tolerancing, and Verification X, 99510M (27 September 2016); doi: 10.1117/12.2238287
Show Author Affiliations
Manuel Campos-García, Univ. Nacional Autónoma de México (Mexico)
Oliver Huerta-Carranza, Univ. Nacional Autónoma de México (Mexico)
José Rufino Díaz-Uribe, Univ. Nacional Autónoma de México (Mexico)
Víctor Iván Moreno-Oliva, Univ. del Istmo (Mexico)
Agustín Santiago-Alvarado, Univ. Tecnológica de la Mixteca (Mexico)
Andrés Peña-Conzueloa, Univ. Nacional Autónoma de México (Mexico)

Published in SPIE Proceedings Vol. 9951:
Optical System Alignment, Tolerancing, and Verification X
José Sasián; Richard N. Youngworth, Editor(s)

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