Gill Instruments · 3D wind sensors
WindMaster from Gill Instruments
Distributor for Gill Instruments in SwedenWindMaster measures the wind in three dimensions, including the vertical component, and gives sonic temperature at the same time. It is used for turbulence and wind loads on masts, bridges and buildings. For eddy covariance flux measurement there are the R3 and HS research anemometers, with up to 100 readings per second.
The models
The WindMaster family for general measurement in three dimensions, and the R3 and HS research anemometers.
Aluminium and carbon fibre
WindMaster
The basic model for wind in three dimensions.
- 0–50 m/s, 1.0 kg.
- Up to 20 readings per second, 32 as an option.
Stainless steel
WindMaster Pro
A heavier stainless steel model, for higher winds and marine environments.
- 0–65 m/s, 1.7 kg.
- 32 readings per second.
Right-angled head
WindMaster RA
A WindMaster with the head at a right angle to the mount, for tight installations.
- 0–50 m/s.
Horizontal head
WindMaster HS
A stainless steel sensor with a horizontal head that disturbs the vertical wind as little as possible.
- 0–45 m/s.
- For eddy covariance and wind profiling, among other uses.
Research
R3-50 and R3-100
A symmetrical aluminium and carbon fibre head, giving 50 and 100 readings per second.
- 0–45 m/s, error below 1%.
- Individual calibration included.
Research
HS-50 and HS-100
A horizontal stainless steel head with a built-in inclinometer.
- 50 and 100 readings per second.
- Inclinometer accurate to ±0.3°.
Compare the models
The main differences at a glance.
| WindMaster | WindMaster Pro | WindMaster HS | R3-50 | HS-50 | |
|---|---|---|---|---|---|
| Wind speed | 0–50 m/s | 0–65 m/s | 0–45 m/s | 0–45 m/s | 0–45 m/s |
| Readings per second | Up to 20, 32 as an option | Up to 32 | Up to 32 | Up to 50 | Up to 50 |
| Accuracy, speed | Better than 1.5% at 12 m/s | Better than 1.5% at 12 m/s | Better than 1.5% at 12 m/s | Better than 1% | Better than 1% |
| Material | Aluminium and carbon fibre | Stainless steel | Stainless steel | Aluminium and carbon fibre | Stainless steel |
| Analogue inputs and outputs | Optional | Optional | Optional | Outputs via an interface unit, inputs optional | Six analogue inputs, outputs via an interface unit |
| Operating temperature | −40 to +70 °C | −40 to +70 °C | −40 to +70 °C | −40 to +60 °C | −40 to +60 °C |
| Protection | IP65 | IP65 | IP65 | IP65 | IP65 |
Swipe sideways to see the whole table. The R3-100 and HS-100 are the corresponding sensors with up to 100 readings per second. Simplified figures. Full specifications and datasheets are available from Gill Instruments ↗.
Sonic temperature and analogue inputs
An ultrasonic anemometer measures the speed of sound in the air and can therefore also derive a temperature, known as sonic temperature. It follows rapid changes and is used together with the vertical wind to calculate heat fluxes.
WindMaster can be ordered with analogue inputs, so that other sensors are sampled in step with the wind, and with analogue outputs. The R3 and HS research anemometers have analogue inputs, and provide analogue outputs via a separate interface unit.
Suited to
Masts and wind power
Turbulence and vertical wind in site surveys and at test sites.
Bridges and tall buildings
Wind loads and gusts, as a basis for warning and control.
Flux measurement
R3 and HS for eddy covariance, where rapid variations in vertical wind have to be captured.
Research
Three wind components, speed of sound and sonic temperature in the same data stream.
What we do
Choice and quote
We help you choose model, output, heating and cable and send you a quote.
Wiring
The sensor is connected to a Campbell Scientific data logger or directly to your system.
Installation
Mounting, alignment and commissioning on site, on a mast, roof or quay.
Service
Troubleshooting, checks and spare parts, and help when a sensor has to go back to Gill.
Frequently asked questions about WindMaster
WindMaster or R3?
WindMaster is enough for turbulence, wind loads and general measurement in three dimensions. For eddy covariance Gill points first to the R3-50, R3-100, HS-50 and HS-100 research anemometers, which measure faster and come with individual calibration.
How many readings per second are needed?
It depends on what is to be calculated. For mean wind and gusts a few readings per second are enough, while flux measurement usually needs ten or more.
Can WindMaster be connected to a data logger?
Yes, via RS-232, RS-422 or RS-485, or analogue with the analogue output option. We wire the sensor and write the program.
Can you help with repair and calibration?
Yes. We troubleshoot the sensor on your site and help when it has to go to Gill for repair or wind tunnel calibration.
More from Gill Instruments
Would you like a quote for a WindMaster?
Tell us what the measurement will be used for, and we will suggest model and outputs.