Rotor Speed Measurement
Rotational speed is measured directly at the slow shaft zone of wind turbines, located between the rotor and gearbox. This method ensures precise speed and acceleration data, avoiding inaccuracies from coupling and gearbox issues. Modular magnetic ring encoders with large hollow shaft diameters and resolutions above 30,000 PPR are essential for high accuracy and redundancy through multiple sensors.

Pitch Control
Pitch control systems are crucial for wind generators, installed in the nacelle to manage blade motion. Adjusting blade angles helps maintain optimal rotor speed and constant power output, reducing shear load on the structure. Electric systems include a controller, gear motor, and rotary encoder, while hydraulic systems use a cylinder and linear encoder.

Generator Speed Feedback Encoders
Wind turbine generators use incremental rotary encoders for speed feedback. Available in hollow and solid shaft versions, they offer redundancy with single or dual signals. Encoders are housed in corrosion-resistant materials suitable for offshore environments.

Yaw Control & Azimuth Position
Yaw control systems use a gear motor with an absolute rotary encoder to align the rotor with the wind, minimizing power loss and fatigue loads. Encoders and geared limit switches prevent cable twisting in the tower.

Encoders and Couplings for Pitch Control Systems
Encoders for pitch control are designed for durability, withstanding temperature extremes and high loads. They feature IP67 protection and are paired with flexible couplings for longevity.

Encoders for Yaw Control
Compact encoders for yaw control systems offer high accuracy and protection against environmental factors. They are designed for integration with geared limit switches.

Feedback Encoders for Generators
Heavy-duty incremental encoders provide feedback for generators, featuring insulated bearings and robust designs for harsh environments. They support long cable transmissions and stable output signals.

Modular Magnetic Encoders for Rotor Speed Control
These encoders offer non-contact measurement and high protection levels, suitable for direct feedback on slow shafts with customizable designs.