Doppler LIDAR Wind Ranger | Wind Ranger BL
The Doppler Wind Lidar product family comprises compact, cost-effective and easy-to-use instruments for vertical determination of the 3D wind vector and turbulence quantities. They perform continuous VAD scans of the laser beam at a zenith angle of 10 degrees. The maximum scanner movement is 2 revolutions per second. While the Wind Ranger 100/200 uses a special FM-CW method for the lower 200 metres measurement height and thus allows measurement heights as low as 7 metres above ground, the Wind Ranger BL uses a pulsed transmission signal and determines the respective measurement heights from the runtime of the received signal.
Details
The Metek Wind Ranger BL is a powerful pulsed lidar for measurements within the PBL to derive vertical profiles of aerosol distribution, 3D wind vectors and turbulence from continuous VAD scans. The narrow cone angle of only 10° allows the setup at virtually any site even with smallest open vertical view sector. The software allows an online data validation and computation of 3D wind profiles. The pulse length can be adjusted within 160 ns … 640 ns for short range measurements starting as low as 60 m agl and alternatively for long range measurements up to the top of the PBL. On special request even measurements significantly lower then 60 m can be achieved.
- Laser wavelength: 1545 nm, laser class 1M (eye-safe)
- Range of measuring heights*: 60 … 2500 m
- Max. number of measuring heights: adjustable
- Height resolution: adjustable, typically 20 … 50 m
- Range of wind speed: 0 … 60 m/s
- Range of wind direction: 0 … 360 °
- Range of std. dev. of vertical wind: 0.02 … 3 m/s
- Accuracy of wind speed*: 0.2 m/s or 2 % at wind speeds > 10 m/s
- Accuracy of wind direction*: 3 ° at wind speeds > 5 m/s
- Accuracy of std. dev. of vertical wind*: 0.1 m/s or 5 %
- Averaging time wind profiles: adjustable, typically 1 .. 30 minutes
- Data output and control: Ethernet, Web GUI
- Built-in memory: 32 GB
- Position: GPS
- Options: Recording of 2-axis inclination sensor
- Ambient conditions (standard) – 30°C …+ 45 °C, 5 … 100 %
- Power consumption lidar: 24 VDC, 100 W lidar / extra 140 W for temperature control
- Weight: approx. 50 kg
- Enclosure dimensions (H x W x D): 620 mm x 530 mm x 340 mm (incl. 4 height adjustable supports: 840 mm x 540 mm x 580 mm)
*Observed height availability and uncertainty in measurements depend on parameter settings and atmospheric conditions.