The projected pattern correlation technique for vibration measurements

R. Konrath; F. Klinge; A. Schroeder; Juergen Kompenhans; U. Fuellekrug

doi:10.1117/12.579572

22 June 2004 The projected pattern correlation technique for vibration measurements

R. Konrath, F. Klinge, A. Schroeder, Juergen Kompenhans, U. Fuellekrug

Proceedings Volume 5503, Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2004) https://doi.org/10.1117/12.579572
Event: Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 2004, Ancona, Italy

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.

Citation Download Citation

R. Konrath, F. Klinge, A. Schroeder, Juergen Kompenhans, and U. Fuellekrug "The projected pattern correlation technique for vibration measurements", Proc. SPIE 5503, Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 June 2004); https://doi.org/10.1117/12.579572

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