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Inspection of reflective surfaces with deflectometry

 
: Burke, Jan

:
Volltext urn:nbn:de:0011-n-3938088 (2.3 MByte PDF)
MD5 Fingerprint: 16d6a7f6d095e7348962b4022e51538d
Erstellt am: 24.6.2016


Hack, Erwin (Ed.); Rastogi, Pramod K. (Ed.) ; Ecole Polytechnique Federale de Lausanne -EPFL-:
International Conference on Processes in Combined Digital Optical and Imaging Methods applied to Mechanical Engineering 2016 : Monte Verita, Ascona, Switzerland, 8-13 May 2016
Ascona, 2016
S.108-111
International Conference on Processes in Combined Digital Optical and Imaging Methods applied to Mechanical Engineering <2016, Monte Verita/Ascona>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IOSB ()

Abstract
Phase-measuring deflectometry combines the advantages of fringe-phase measurement, with
sensitivity about 1/1000th fringe of displacement, and surface-slope measurement, with sensitivity especially to small-scale surface disturbances. As opposed to fringe-projection techniques (which rely on surface scattering), deflectometry requires specular reflections. An overview is given of deflectometric signal capture and processing strategies developed in recent years in the “Image-based Measurement Systems” workgroup at the Fraunhofer IOSB.

: http://publica.fraunhofer.de/dokumente/N-393808.html