3-Axis Ultrasonic Anemometer
Gill 3-axis Research range of ultrasonic anemometers offers users a number of different instruments. This range is valued for the quality of its measurements and is used by recognised experts to gather data they reply upon for their research and publications.
The Research range includes models featuring horizontal head configurations for highly accurate vertical flow analysis, with minimal interruption from anemometer geometry. These models have a built in inclinometer to assist set-up on towers or masts.
The R3-50™ 3-axis anemometer has been designed for scientific research, particularly suitable for determining fluxes using the eddy covariance technique. This precision ultrasonic anemometer will monitor wind speeds up to 45m/s, with a fast data output rate of 50Hz. U, V, W and SOS (sonic temperature) outputs are available, and data can be logged using the supplied Gill WindCom™ software.
The R3-50 is of aluminium/carbon fibre construction and will operate effectively in environmental temperatures from -40°C to +60°C. Optional accessories are available including cables, sensor input units (analogue inputs) and power supplies.
- 3-axis research anemometer
- 50Hz output rate
- 0-45 m/s wind speed
- 0-360º wind direction
- U, V, W vector outputs
- Sonic temperature output
- Aluminium/carbon fibre construction
- Custom calibration provided as standard
| WIND SPEED | |
| Range | 0 - 45 m/s |
| Resolution | 0.01 m/s |
| Accuracy | <1% RMS |
| DIRECTION | |
| Range | 0 - 360° |
| Resolution | 1° |
| Accuracy* | <±1° RMS |
| SPEED OF SOUND | |
| Range | 300-370 m/s |
| Resolution | 0.01 m/s |
| Accuracy | < ±0.5% @ 20ºC |
| MEASUREMENT | |
| Ultrasonic output rate | 50 Hz |
| Parameters | UVW, Speed of Sound |
| DIGITAL OUTPUT | |
| Communication | RS422 full duplex, 8 data bits, 1 stop bit, no parity |
| Baud rates | 2400 - 115200 |
| Output parameters | Selectable 0.4 to 50 Hz |
| PRT INPUT | |
| Input resolution | 0.01°C |
| Input accuracy | <0.01°C (0°C to +50°C) <0.15°C (-40°C to +60°C) |
| ANALOGUE OUTPUTS (REQUIRES PCIA UNIT) | |
| Quantity | 7 (U, V, W, SoS, PRT plus 2 analogue outputs) |
| Scale | ±10, ±20, ±30, ±60 m/s |
| Update rate | 0.4 to 50 Hz |
| Range and resolution | ±2.5 V, 14 bits |
| Accuracy | <0.1% of FSR |
| ANALOGUE INPUTS (REQUIRES SIU) | |
| Quantity | 6 differential inputs |
| Sampling rate | 50 Hz |
| Range and resolution | ±5 V, 14 bits |
| Accuracy | <0.1% of FSR |
| POWER REQUIREMENT | |
| Anemometer | 9-30 VDC (<150mA @ 24 VDC or 300mA @ 12 VDC) |
| MECHANICAL | |
| Material | Aluminium/Carbon Fibre |
| Size | 750mm x 240mm |
| Weight | 1.0 kg |
| ENVIRONMENTAL | |
| Protection Class | IP65 |
| Operating Temp | -40°C to +60°C |
| Precipitation | 300mm/hr |
| EMC | BS EN 50081-1: 1992 (Emissions) BS EN 50082-1: 1997 (Immunity |
| Suitable for exposure to a marine environment |
