AMES Environmental Measurement Systems
Anemometer uSonic-1 Spinner
Innovative rotor mounted anemometer for wind turbines.
uSonic-1 Spinner is an ultrasonic anemometer intended specifically for measuring wind speed directly in front of the rotor of a wind turbine. This is achieved through it's innovative mounting right on the tip of the nosecone of the turbine. There, it can measure wind speed and direction without encountering nacelle/rotor flow distorsions.
Expected increase in wind turbine performance is 1-5%, primarily by reducing yaw control error. These sensors are resistant to icing (built in heater) and require no maintenance after installation.
| Range | Resolution | |
| Wind speed measurement | 0 – 40 m/s | 0.025 m/s |
| Yaw error measurement | 1° | |
| Inflow inclination angle measurement | 1° | |
| Air temperature measurement | 1 K | |
|
Measurement duration
(complete measurement cycle)
|
0.010 s | |
|
Sampling frequency
(serial line output)
|
0.10 Hz – 10 Hz | |
| Internal sample rate F |
10 – 20 Hz
10 Hz default
|
|
| No of samples for averaging Nave | 1000 – 3000 | |
| Averaging time T = Nave / F | 1 s – 150 s |
| Title | Description | Filename |
|---|---|---|
| Anemometer uSonic-1 Spinner | DTU_Risoe_EWEC_2007_Spinner_Anemometry.pdf | |
| uSonic-1 Spinner - Brochure | Metek_Ultrasonic_Anemometer_Spinner_uSonic_1_Datasheet.pdf |
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uSonic 1 spinner, mounted on the cone of a wind turbine
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