In addition the motion-lab has invested in a Leica AT960 real-time 6-DOF Laser Tracker, see This new tracker can measure 6-DOF data at 1000Hz with an Ethercat real-time interface.

The E-Motion 1500 is capable of generating the following heave amplitudes at different frequencies:

0.20m – 0.5Hz
0.10m – 1.0Hz
0.05m – 1.5Hz
0.025 – 2.0Hz
0.01m – 3.5Hz