In this application video, two high-speed SpeedSense cameras (operating at 625 Hz) are used to measure
the deflection of a beam being vibrated/shaken at 50 Hz. The real-time, speckle pattern quality evaluator
and projection calibration are both performed online, in Istra4D, within the live acquisition mode. A
ringbuffer recording is performed saving 2000 frames.
The deflection of the beam can be seen in the graphical visualization and the data is exported in HDF5
format whereby an FFT analysis is performed on the displacement data sampled at the camera frequency.
The selected modal shape spikes are chosen at 50 Hz (the test operation) and at 150 Hz.
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