Wind direction can be calculated by taking velocity readings from two ultrasonic sensor pairs perpendicular to each other and using a bit of simple trigonometry. For an ultrasonic anemometer to ...

Description: The PAV5000 series MEMS anemometer sensor is fully calibrated and temperature-compensated for easy integration into portable anemometers and fixed in-duct air velocity monitors for the ...

You need another anemometer that is known to be accurate or a wind source of a known velocity. A while back we covered [Jianjia Ma]’s ultrasonic anemometer build, where he mounted it on top of ...