Anemometer uSonic-1 Spinner

Innovative rotor mounted anemometer for wind turbines.

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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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