, a compact static Doppler wind lidar
is a Doppler lidar for nacelle-based static wind measurements. Avoiding any moving elements results in a most ruggedized design of the instrument. Installation in the spinner of wind turbines at oblique angles with respect to the rotor axis produces a conical scan while the rotor is turning. From the line-of-sight wind data, the mean wind vectors ahead of the rotor are calculated.
- Laser, signal detection and processing, industrial PC, and power supply in a single box
- Wind speed up to 85 m/s at 0.1 m/s resolution
- Profiling range from 60 to 555 m, depending on atmospheric visibility
- Wind data in 37 simultaneous range gates,
each of 30 m length with a 50% overlap
- Dimensions (L×W×H): 410×340×320 mm³ without rubber bearings and connectors
- Mass: approx. 17 kg without rubber bearings
- Input voltage: 24 (18...36) V DC; power 100 W max
- Eye-safe laser operation
- Protection classification: IP68
The Graphical User Interface, with (from top to bottom) analog detector data,
spectrum from aerosol backscatter showing the Doppler peak at 250 m distance
from which wind speed is derived, and colour coded wind profiles
where measuring points correspond to seconds.
Wind data accuracies were calibrated by Deutsche WindGuard GmbH. Read the Caribration Report.
on a stand with antenna rotor, an economic instrument for ground-based assessment of wind resource in the context of wind farm planning. The 360° rotation time is 50 seconds, typically.
Send us an e-mail for more information!
was developed at University of Oldenburg with funds from the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety, Berlin, Germany.