Laser Vibrometry

For various applications in vibration and fluid flow analysis a Polytec Laser Vibrometer is used including an OVD-02 velocity and an OVD-20 displacement decoder. This system can also be used to trigger the holographic pulsed laser system.

The picture below shows the vibration frequency spectrum of a test turbine as recorded with the laser vibrometer. An additional modal analysis had been performed using pulsed laser holography.

Laser vibrometry of disc vibrations
© TTM
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Institute of Thermal Turbomachinery and Machine Dynamics

Graz University of Technology
Inffeldgasse 25/A
A-8010 Graz

Tel: +43 (0)316 873 - 7226
Fax: +43 (0)316 873 - 7239
ttmnoSpam@tugraz.at