抄録
Wind induced noise on a microphone is indeed a problem for wind turbine noise measurements. To test windscreens fabricated to investigated possible improvement of its performance, three secondary windscreens were designed and produced based on various ideas as well as according to the IEC standard of 61400-11. Test results revealed that a microphone senses a pressure fluctuation due to the wind speed fluctuation and, thus, that larger windscreen gave better performance for wide range of frequencies.
