The fatigue test of a tensile test specimen is measured during a long term test with the combination of RTSS Videoextensometer and phase trigger of the StrobeCAM. The excitation frequency is 200Hz in this sample. The videoextensometer measures online the longitudinal strain.
Figure 1 shows a screen shot during the measurement. From the automatic phase sweep the temporal propagation is measured and the maximal strain values can be determined in the long term test.
The measurement results are logged or directly interfaced to the test maschine.