They then tested the system outdoors and compared its horizontal wind measurements with measurements from an ultrasonic wind sensor, a non-remote system for measuring wind. (sciencedaily.com)
Once the turbine is operational, wind sensors connected to a yaw drive system turn the nacelle to face into the wind, thereby maximizing the amount of electricity produced. (boem.gov)
A fast - response, 3D wind sensor (sonic anemometer) to record the orthogonal wind components and the speed of sound (SOS), which is used to derive the air temperature; (arm.gov)