Laser Vibrometer Tempo

The Tempo series is based on the principle of two-wave photorefractive mixing. This method can already represent frequencies from 1 kHz and is theoretically not limited to high frequencies.

The output signal is a time-variable analog voltage that is proportional to the instantaneous surface shift in the nm range. The upper cut-off frequency is up to 1 GHz, depending on the type.

Application examples

Material investigation over the complete volume, e.g. representation of blowholes deep inside a metal body

Thickness measurement of any body

Representation of holes or defects on the back of an object

Representation of delamination on composite materials such as GFRP and CFRP. Pulsed detection lasers can be used to avoid thermal damage to the material.

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Advantages
  • Very high upper cut-off frequency (approx. 1 GHz)
  • Very low lower cut-off frequency (approx. 1 kHz)
  • Simultaneous detection in plane 90° to plane possible (1D and 2D)