The ZephIR 300 is a continuous-wave (CW) LiDAR system that provides remote wind measurements across ten user-defined heights from 10 m to 200 m. It is ideal for applications that require wind measurements at multiple heights, and for locations where the installation of a tall tower is difficult.
The ZephIR 300 has been used worldwide for site assessment, prospecting, and turbine micrositing; extreme flow conditions; power-curve assessment; permanent wind-farm anemometry; and complex site analysis.
ZephIR300 is calibrated to an industry-approved standard. Its proven technology has been rigorously tested via IEC equivalent power performance measurements, extensive onshore/offshore sites, and tall mast (193 m) verifications.Measurement Technique
The ZephIR300's infrared beam illuminates natural-atmospheric aerosols such as dust, pollen, or rain droplets. When the infrared beam hits these aerosols, some light is backscattered into a receiver. Wind affects the motion of these aerosols, and changes the back-scattered light’s frequency. This frequency shift is measured by a photo-detector, and from these measurements, wind speed and direction are calculated.