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Proceedings Paper

The projected pattern correlation technique for vibration measurements
Author(s): R. Konrath; F. Klinge; A. Schroeder; Juergen Kompenhans; U. Fuellekrug
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Paper Abstract

The objective of this paper is the description of the Projected Pattern Correlation method for measuring surface velocities and to present results of a feasibility study. Similar to the Moire technique the local surface velocities of a large area are determined simultaneously, which replace a time consuming point wise scanning as it is necessary in e.g. Laser Doppler Vibrometry. Furthermore, the dynamics of non-periodic processes can be resolved temporally and spatially. In difference to the Moire or grid projection techniques the evaluation step is fast (real-time measurements are possible) more robust and provides a high spatial resolution. The measurement precision is assessed using a simple test arrangement. Vibration measurements are performed on a satellite model structure and a honeycomb sandwich plate.

Paper Details

Date Published: 22 June 2004
PDF: 12 pages
Proc. SPIE 5503, Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 June 2004); doi: 10.1117/12.579572
Show Author Affiliations
R. Konrath, DLR (Germany)
F. Klinge, DLR (Germany)
A. Schroeder, DLR (Germany)
Juergen Kompenhans, DLR (Germany)
U. Fuellekrug, DLR (Germany)


Published in SPIE Proceedings Vol. 5503:
Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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