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Cost-effective BRDF spectroscopic bench involving gimbal-based sample positioning system
Hastanin, Juriy; Mazy, Emmanuel; Clermont, Lionel et al.
2025In Proceedings of SPIE: The International Society for Optical Engineering, 13567, p. 73
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Keywords :
BRDF measurement; Total Absolute Measurement System; TAMS spectrophotometers; diffusers calibration
Abstract :
[en] This paper addresses the engineering aspects of implementing a cost-effective instrumental approach to measuring the Bidirectional Reflectance Distribution Function (BRDF) of optical diffusers. The measurement bench presented involves a PerkinElmer UV/Vis/NIR spectrophotometer equipped with a sample angular orientation system based on a compact motorized gimbal. This instrumental approach allows for measuring the BRDF with accuracy comparable to that achieved in much more expensive robot-based gonioreflectometer benches. Its practical implementation is straightforward and does not require significant costs for purchasing additional measuring equipment or adapting the laboratory clean room. The presented approach can be easily adapted to other available spectrophotometers. Additionally, we introduce a relatively simple yet effective data processing method and discuss various aspects of its practical use for analyzing measurement data obtained using the developed spectrometric bench.
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Hastanin, Juriy ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Mazy, Emmanuel ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Clermont, Lionel ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Michel, Céline ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Dandumont, Colin  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Georges, Marc ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Rossi, Laurence ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Marcotte, Sara ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Rabecki, Frédéric ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Thizy, Cédric ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Language :
English
Title :
Cost-effective BRDF spectroscopic bench involving gimbal-based sample positioning system
Publication date :
08 August 2025
Event name :
SPIE Optical Metrology 2025
Event organizer :
SPIE
Event place :
Munich, Germany
Event date :
23 juin 2025 - 26 juin 2026
Audience :
International
Journal title :
Proceedings of SPIE: The International Society for Optical Engineering
ISSN :
0277-786X
eISSN :
1996-756X
Publisher :
International Society for Optical Engineering, Bellingham, United States - Washington
Volume :
13567
Pages :
73
Peer review/Selection committee :
Editorial Reviewed verified by ORBi
Name of the research project :
Copernicus CO2M mission
Funders :
ESA - European Space Agency
Available on ORBi :
since 13 September 2025

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