Sensitivity analysis in the test of a parabolic trough solar collector (PTSC) with flat null-screens
| Autor: | Manuel Campos-García, Agustin Santiago-Alvarado, Víctor Iván Moreno-Oliva, Andrés Peña-Conzueloa, José Rufino Díaz-Uribe, Oliver Huerta-Carranza |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Surface (mathematics)
Physics Null (radio) business.industry Centroid Geometry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Numerical integration 010309 optics Optics Amplitude Position (vector) 0103 physical sciences Parabolic trough Sensitivity (control systems) 0210 nano-technology business |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2238287 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|