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Validation of two Optical Measurement Methods for the Qualification of the Shape Accuracy of Mirror Panels for Concentrating Solar Systems

März, Tobias and Prahl, Christoph and Ulmer, Steffen and Wilbert, Stefan and Weber, Christian (2010) Validation of two Optical Measurement Methods for the Qualification of the Shape Accuracy of Mirror Panels for Concentrating Solar Systems. In: Validation of two Optical Measurement Methods for the Qualification of the Shape Accuracy of Mirror Panels for. Solar Paces Symposium, Perpignan. (Submitted)

Full text not available from this repository.

Abstract

Photogrammetry and deflectometry are two optical measurement methods that are typically used to measure the shape accuracy of mirror panels used in CSP applications. They have been compared and validated by measuring a typical mirror panel under optimal conditions. Furthermore, as an absolute reference object a flat water surface has been measured by deflectometry. The remaining deviations between the results of both methods and to the reference object are discussed and possible sources of errors during the measurement are identified. A detailed error analysis is conducted for both methods and compared to the experimental findings. The results show that both methods, when used correctly, show acceptable measurement uncertainties for the measurement of presently achievable accuracies of CSP applications, although, deflectometry exhibits advantages in speed, measurement accuracy and spatial resolution.

Document Type:Conference or Workshop Item (Paper)
Title:Validation of two Optical Measurement Methods for the Qualification of the Shape Accuracy of Mirror Panels for Concentrating Solar Systems
Authors:
AuthorsInstitution or Email of Authors
März, Tobias UNSPECIFIED
Prahl, Christoph UNSPECIFIED
Ulmer, Steffen UNSPECIFIED
Wilbert, Stefan UNSPECIFIED
Weber, ChristianUNSPECIFIED
Date:2010
Journal or Publication Title:Validation of two Optical Measurement Methods for the Qualification of the Shape Accuracy of Mirror Panels for
In Open Access:Yes
Status:Submitted
Keywords:Solar concentrator, shape accuracy, optical quality, optical measurement, deflectometry, photogrammetry
Event Title:Solar Paces Symposium
Event Location:Perpignan
Event Type:international Conference
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Qualifizierung (old)
Location: other
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Stefan Wilbert
Deposited On:21 Jan 2011 16:30
Last Modified:21 Jan 2011 16:30

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