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From Research to Industry: Development of a High-Resolution Measurement System for Mirrored Heliostats in Series Production

Schedler, Steffen and Ulmer, Steffen and Koch, Henning and Röger, Marc and Benitez, Daniel and Prahl, Christoph and Weinrebe, G. (2019) From Research to Industry: Development of a High-Resolution Measurement System for Mirrored Heliostats in Series Production. In: AIP Conference Proceedings, 2126 (030051), pp. 1-10. SolarPACES 2018 Conference, 2.-5. Oktober 2018, Casablanca, Marokko. DOI: 10.1063/1.5117563

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Official URL: https://aip.scitation.org/doi/abs/10.1063/1.5117563


A new measurement system able to measure the shape accuracy of complete mirrored heliostat modules in series production was developed. The applied deflectometry measurement method is based on the reflection of regular patterns in the mirror surface and their distortions due to mirror surface deviations. The measurement system’s key features are its high spatial resolution, its low global measurement uncertainty of less than 0.2 mrad and its total measurement and evaluation time of few minutes. The measurement process is contact-free and completely automatic, which allows a 100% optical quality control of the production of the heliostat modules for a typical solar tower power plant. The system is validated by measuring a flat reference surface and by comparison to manual photogrammetry measurements. This makes the new measurement system, called QDec-M-Helio, a valuable tool for final geometric quality control of heliostats in series production, especially for new generation heliostats which obtain its final curvature during a bonding process between mirror and support structure from a precise jig.

Item URL in elib:https://elib.dlr.de/125526/
Document Type:Conference or Workshop Item (Speech)
Title:From Research to Industry: Development of a High-Resolution Measurement System for Mirrored Heliostats in Series Production
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schedler, SteffenCSP ServicesUNSPECIFIED
Ulmer, SteffenCSP ServicesUNSPECIFIED
Koch, HenningCSP ServicesUNSPECIFIED
Röger, MarcMarc.Roeger (at) dlr.dehttps://orcid.org/0000-0003-0618-4253
Benitez, Danieldaniel.benitez (at) dlr.dehttps://orcid.org/0000-0001-6078-2989
Prahl, Christophchristoph.prahl (at) dlr.dehttps://orcid.org/0000-0002-8596-9050
Weinrebe, G.Stellio ConsortiumUNSPECIFIED
Date:25 July 2019
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1063/1.5117563
Page Range:pp. 1-10
Keywords:CSP, heliostat, shape accuracy, optical quality, quality control, optical measurement, deflectometry
Event Title:SolarPACES 2018 Conference
Event Location:Casablanca, Marokko
Event Type:international Conference
Event Dates:2.-5. Oktober 2018
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Impact of Desert Environment
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Deposited By: Kruschinski, Anja
Deposited On:21 Dec 2018 13:44
Last Modified:26 Jul 2020 03:00

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