A multisensorial thermal anemometer system

This work deals on the design of a multisensorial anemometer able to provide an accurate measurement of both wind speed and direction. The system is based on thermal anemometry that is, probably, the preferable way to measure instantaneous wind velocity in any weather condition and surrounding. The application here proposed is based on a commercial flow probe, the IST FS5 that shows a robust design without moving parts, small dimensions and is suitable to operate up to 150 °C and a wind speed of 100 m/s. In addition, the sensor is organized as a pattern of probes. In this way, being the analysis based on differential measurements, analyzing the signal provided by each sensor is possible to perform an accurate evaluation of both the wind speed and direction. A microcontroller realizes the data management and wind flow identification process.