RoboVib

The RoboVib combines state-of-the-art 3D scanning vibrometer technology for vibration analysis with the advantages of a wide-span Kuka industrial robot. This enables us to perform automated tests on complex and very large structures. The experimental modal analysis of the object can thus be carried out in a fraction of the time normally required and with significantly higher spatial resolution. From this data, we can determine critical operating points, derive design measures to reduce certain vibration modes, or validate finite element models with the real measurement data.

The robot arm carries three PSV-500 scanning vibrometers and moves them to any position within the working space. The vibrometers have a bandwidth of 100 kHz with a resolution of 0.001 to 12 m/s. In addition, the RoboVib can be moved on a linear axis, enabling us to measure test specimens with dimensions of up to 6x2x2 m. In addition to the advantages of this large working space and the high-precision, automatable alignment of the measuring heads, the system also allows the laser beam geometry to be optimally adjusted at any point on the surface to be examined.

• Bandwidth: 0 – 25 MHz (1D) or 0 – 5 MHz (3D)
• Resolution: 0.01 µm/s – 30 m/s (oscillation velocity of the object surface)
• Simultaneous measurement in all 3 spatial directions
• Robot span: approx. 6 m
• Max. object size: approx. 2x2x6 m
• Excitation: up to 2 kN per actuator (electrodynamic shakers)