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TV-Holo pulsed
For surfaces larger than a square meter with large deformation amplitudes or on site measurements, pulsed laser interferometric techniques are preferred.
The short nature of the laser pulses (7 ns to 30 ns) freezes the structures exposed to fast deformations.
The advantage of the technique is that of being able to make measurements on site under difficult conditions.
The TV holographic head uses a 580 x 768 pixel camera and can be employed in several modes.
- Double firing recording : the time between two shots is adjustable between 10 µs and 20 ms
- Recording of a simple fring sequence : the images can be recorded at 25 Hz
The analysis of rotating objects is possible through the use of a derotator.
