• Laser device for geometry measurement of wind turbine rotors.                                          
  • Verification of the dynamic and aeroelastic behavior of the rotor and the whole turbine.
  • Detect aerodynamically excited imbalances and indicate important mass excited imbalances.



  • Measurement realized while the turbine is in operation.
  • Results available immediately on site.
  • Simple measurement without the manufacturer's assistance.
  • Several control points ( pitch angle, tower oscillation, radial spliting, blade clearance, blade twist...).



The ROMEG is the unique tool allowing a wind turbine blade angle control in real operation conditions. Blades, during the measurement, are under normal aerodynamic loads due to the wind, centrifugal and gravitational forces. These constraints are not taken into account with other measurement tools that are requiring a standstill blade.


The ROMEG process:

Two distance are measured with lasers by scanning the blade at two different positions. Blade profiles and tower oscillation are recorded in parallel.

         On the left, the image shows the ROMEG in measurement phase.


Blade profile graphs measured with the ROMEG:

          Profiles with a 0.2° deviation                             Profiles with 0.6°                                            Profils with 1.2°


With the blade profiles, the tower movement are also recorded and illustrated with the rotor rotational speed.

Tower movement with a 0,2° difference                 Tower mouvement with 0,6°                 Tower mouvement with 1,2°

Different control points:


Relative pitch angles                                      +/- 0.2°

Radial splitting                                                +/- 0.2°

Tower clearance                                             +/- 50mm

Twist angle                                                       +/- 1°

Axial Tower oscillation                                    +/- 10mm