Logo der Physikalisch-Technischen Bundesanstalt

Mathematische Modellierung und Datenanalyse

Fachbereich 8.4

Publikations Einzelansicht


Titel: Virtual experiment for near-field goniophotometric measurements
Autor(en): F. Schmähling, G. Wübbeler, M. Lopez, F. Gassmann, U. Krüger, F. Schmidt, A. Sperling and C. Elster
Journal: Applied optics
Jahr: 2014
Band: 53
Ausgabe: 7
Seite(n): 1481--7
Optical Society of America
DOI: 10.1364/AO.53.001481
ISSN: 1539-4522
Web URL: http://www.osapublishing.org/viewmedia.cfm?uri=ao-53-7-1481&seq=0&html=true
Schlüsselwörter: Gonio,Light-emitting diodes,Mathematical methods (general),Metrological instrumentation,Metrology,Photometry,virtual experiment
Marker: 8.4,8.42,Form
Zusammenfassung: Near-field goniometric measurements are employed to determine the photometric characteristics of light sources, i.e., the spatial and angular distribution of the emitted light. To this end, a complex measurement system consisting of a goniometer and a CCD-based imaging photometer is employed. In order to gain insight into the measurement system and to enable characterization of the whole measurement setup, we propose to apply a computer model to conduct virtual experiments. Within the computer model, the current state of all parts of the virtual experiment can be easily controlled. The reliability of the computer model is demonstrated by a comparison to actual measurement results. As an example for the application of the virtual experiment, we present an analysis of the impact of axial malpositions of the goniometer and camera.

Zurück zur Listen Ansicht