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 R3-100™ anemometer is Gill’s class-leading 3-axis anemometer ideal for scientific research applications, with a fast sampling rate of 100Hz. This 3-axis ultrasonic anemometer is used extensively for the determination of fluxes using the Eddy Covariance method.
R3-100 will monitor wind speeds of 0-45m/s, with analogue, sonic temperature, speed of sound and U, V, W vector outputs provided as standard and optional analogue and PRT inputs available. The R3-100 is of aluminium/carbon fibre construction and will operate effectively in environmental temperatures from -40°C to +60°C. Optional accessories are available such as cables, sensor input units (analogue inputs) and power supplies.
- 3-axis research anemometer
- 100Hz 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 sampling rate | 100 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 rate | Selectable 0.4 to 100Hz |
| ANALOGUE INPUTS (VIA OPTIONAL SIU) | |
| Quantity | 6 differential inputs |
| Sampling rate | 100Hz |
| Range and resolution | ±5V, 14 bits |
| Accuracy | <0.1% of FSR |
| ANALOGUE OUTPUTS (VIA SUPPLIED PCIA) | |
| Quantity | 7 (U, V, W, SoS, PRT plus 2 analogue inputs) |
| Sampling | ±10, ±20, ±30, ±60 m/s |
| Update rate | 0.4 to 100Hz |
| Range and resolution | ±2.5V, 14 bits |
| Accuracy | <0.25% of FSR |
| PRT INPUT** | |
| Input resolution | 0.01°C |
| Input accuracy | <0.01°C (0 to 50°C) < 0.15°C (-40°C to +60°C) |
| INCLINOMETER (OPTIONAL) | |
| Range and resolution | ±20°C, 0.01° |
| Null repeatability | ± 0.15° |
| Accuracy | ±0.3° (from -10° to 10° of inclination) |
| POWER REQUIREMENT | |
| Anemometer | 9-30V dc <4w (eg. <150mA @ 24V DC or 300mA @ 12V dc) |
| ENVIRONMENTAL | |
| Protection Class | IP65 |
| Operating Temp | -40°C to +60°C |
| Precipitation | Operation to 300 mm per hour |
| EMC | BS EN 50081-1: 1992 (Emissions) BS EN 50082-1: 1992 (Immunity) |
