Coherent Detection Doppler Wind Lidar IEC 60825-1 Class 1M Eye Safety Wind Lidar
Laser Safety Class IEC 60825-1 (2014) Class 1M Eye Safety Wind Lidar
1,Product introduction
It can be known from the Doppler principle that the Doppler frequency shift fd of the echo signal is proportional to the moving speed of the aerosol particles (that is, the wind speed), so the backscattered signal received by the optical antenna passes through the local oscillator generated by the fiber laser inside the system.The light beat frequency in the coherent detection module and the digital demodulation can be processed to obtain the wind speed information of the target area to be measured.
2,Performance parameters
| Basic parameters | |
| Line-of-sight detection distance | 10km (typical case) |
| Distance resolution | 30m/45m/60m/75m optional |
| Accumulation time | 0.5s/1s/2s/4s/8s optional |
| Radial wind speed measurement range | -75~+75 m/s |
| Radial wind speed measurement accuracy | 0.1m/s |
| Number of distance layers | up to 300 |
| Horizontal scan range | 360° × n |
| Vertical scan range | -10°~190° |
| Pointing accuracy | 0.1° |
| Scanning method | PPI , RHI , DBS , LOS and Program Scan |
| Real-time data output form | Profibus DP/Modbus TCP/CAN optional |
| Telecommunication | 1000BASE-TX or 4G remote access |
| Environmental parameters | |
| Operating temperature and humidity | -25~+50℃ (extendable to -40~+60℃), 5%~100% RH |
| IP protection class | Housing IP54, core module IP66 |
| Anticorrosion grade | C4 |
| Survival wind speed | 70m/s (fixed by foot or by wire rope) |
| Working altitude | ≤3500m |
| Other parameters | |
| Running power consumption | ≤1kW |
| Powered by | 110VAC±20% or 220VAC±20%, 50Hz±10% |
| Size | 800mm*650mm*11 30mm |
| Weight | ≤150kg |
| Accessibility | |
| GNSS functionality | Support GPS/Beidou |
| Time service | NTP timing or GPS/Beidou timing |
3,Schematic diagram of 3D scanning Doppler wind Lidar
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