Oklahoma State University is currently evaluating various ultrasonic anemometer and multirotor platforms to determine the best combination and mounting locations. Research is being conducted to analyze the flow field around a multirotor to determine if the in-flow of the rotors has an adverse affect on the anemometer measurements.
The image, below, is of a DJI M600 with an 81000 R.M. Young Ultrasonic Anemometer. Photo credit Dr. Jamey Jacob. This anemometer is powered by the aircraft's main power system and records data using a Beaglebone.
More information on this topic will be posted as it becomes available.