DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Optical measurement of surface deformation

Stasicki, Boleslaw and Boden, Fritz (2008) Optical measurement of surface deformation. [Other]

Full text not available from this repository.


An electronic camera, which is synchronized with the oscillation via a digital phase shifter, is targeted on this pattern. By recording a reference frame e.g. at the neutral position of the wing as well as a second frame in the deflected position and comparing both, the displacement vectors of the dots can be calculated by means of correlation analysis. Hence the translation and the deformation of the examined surface are obtained. For qualitative preview this calculation can be done in real-time, so that the vectors are directly depicted on the screen. By using the digital phase shifter, the movement of the object and the corresponding vector fields can be displayed in real-time as slowly as desired (slow motion effect). To get real three-dimensional information about the movement and the deformation of the investigated surface, a stereoscopic camera setup consisting of two cameras targeted on the same dot pattern from different positions i.e. under different viewing angles can be used.

Item URL in elib:https://elib.dlr.de/51670/
Document Type:Other
Title:Optical measurement of surface deformation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Refereed publication:No
Open Access:No
Number of Pages:2
Series Name:Handout
Keywords:Image Pattern Correlation Technique (IPCT), DLR's prototype Fairchild Dornier (Do 728), videostroboscopy
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:15 May 2008
Last Modified:27 Apr 2009 14:27

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.