Accumulation Time 0.2 to 10 Seconds Optional Doppler Wind Lidar with Data Output

Product Description:

The Molas 3D represents a cutting-edge three-dimensional scanning Doppler wind measurement lidar system. It is developed based on the principle of pulsed laser coherent Doppler frequency shift technology. By emitting pulsed laser beams and detecting the frequency shifts of backscattered signals from atmospheric aerosols, the system can accurately compute the line-of-sight wind speed and direction at various spatial points. This process enables precise high-resolution reconstruction of three-dimensional wind fields.

This lidar system supports a comprehensive range of scanning modes designed to meet diverse measurement needs:

• PPI (Plan Position Indicator): Provides horizontal sector or full 360° scanning, ideal for mapping wind fields over extensive areas.
• RHI (Range Height Indicator): Performs vertical elevation scans, which are suited for capturing vertical wind profiles and understanding boundary layer structures.
• DBS (Doppler Beam Swinging): Uses multi-beam fixed-direction scans to accurately retrieve both horizontal wind vectors and vertical velocity components.
• Program Scan: Allows for user-defined custom scanning trajectories, offering maximum flexibility for specialized research applications.

The Molas 3D system achieves a maximum acquisition distance of up to 15 kilometers and a sight detection range of 10 kilometers at an elevation of 600 meters. Vertically, the measurement can extend up to 4 kilometers. The distance resolution is configurable to 15 m, 30 m, 75 m, or 120 m, supporting up to 300 distance layers for detailed data capture. Its line-of-sight wind speed range spans from −75 m/s to +75 m/s with an impressive accuracy of 0.1 m/s. Additionally, the scanning head offers 360° horizontal rotation combined with a vertical tilt from −10° to 190°, maintaining a pointing accuracy of ±0.005°, thereby ensuring highly reliable and repeatable measurements.

Designed for a variety of challenging applications, the Molas 3D excels in:

• Offshore Wind Resource Assessment: Delivering precise wind mapping over marine areas where conventional meteorological masts are impractical or costly.
• Complex Terrain Research: Capturing the intricate wind flow patterns found in mountainous regions, hills, and valleys with highly inhomogeneous wind characteristics.
• Wind Turbine Wake Detection: Visualizing and analyzing wake deficits and turbulence behind turbines to optimize wind farm layouts and reduce fatigue loads.
• Airport Glide Path Wind Shear Warnings: Providing early warning of hazardous wind shear conditions along aircraft approach paths to enhance aviation safety.
• Urban Meteorological Observation: Monitoring wind dynamics within city canyons to aid in urban planning and pollution dispersion studies.
• High-Altitude Turbulence Detection: Observing atmospheric turbulence at high elevations to support aviation operations and climate research.

The system is engineered for dependable performance even in harsh environmental conditions. It operates reliably within a temperature range of −40°C to +60°C and tolerates humidity levels from 0% to 95% RH (non-condensing). The robust housing is rated IP65, while internal components meet the more stringent IP66 protection standards. Data management is highly flexible: data can be stored locally for periods ranging from 5 to 18 months in standard .csv format, and transmitted via 1000BASE-TX Ethernet or through 4G remote access. Furthermore, the system offers multiple output interfaces including Profibus DP, Modbus TCP, and CAN, enabling seamless integration with various control and data acquisition platforms.

Combining reliable performance, adaptable scanning modes, and broad application versatility, the Molas 3D stands out as a premier solution for advanced wind measurement and atmospheric research. It empowers industries with accurate, data-driven insights to support confident decision-making.

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