Continous monitoring of the pitch angles

Continuous measurement of pitch angles with eologix:align enables

  • Increase of the annual energy yield
  • Prevention of damage
  • Reduction of service costs

For early and accurate detection of pitch angle misalignments, eologix offers – also retrofittable – sensor systems based on wireless, flexible and energy-autonomous intelligent sensors directly on the surface of the rotor blades.

Our system for pitch angle measurement is

  • independent of the location
  • can be used with any wind turbine
  • also for offshore

“Almost 80% of all wind turbines have an unacceptable rotor imbalance and/or pitch angle error.”

(WiD Whitepaper Auswuchten von WEA-Rotoren Whitepaper Auswuchtenvon WEA-Rotoren: Wirtschaftliche Vorteile und technische Umsetzung Von Dr. Christoph Heilmann, Anke Grunwald, Michael Melsheimer, Berlinwind GmbH)

System components


Wireless and flexible smart sensors are powered by solar energy almost indefinitely. Each sensor measures the accelerations that occur at the sensors during operation of the wind turbine. From these accelerations, we can infer the rotational speed of the rotor and the alignment of these blades.

The unique, patented design (flexible, less than 2 mm thick) allows the sensors to be mounted on almost any part of the rotor blade, as well as on other structures such as the nacelle or tower. The mounting is done by using a self-adhesive erosion protection foil.

Base station (receiving unit)

The base station (one unit per installation) receives the data packages sent out by the sensors via radio. It is typically installed as a component in the nacelle, but can also be mounted in the spinner, in the tower base or on the ground.


In our online dashboard, both live and historical data can be viewed and exported.

eologix system




Continous pitch angle monitoring

With this product, the relative pitch angles are continuously measured during operation of the system. The system automatically warns* in case of deviations outside the limit values.


*Automatic warning message only included in the package eologix:align Advanced