%0 Journal Article %T On Cup Anemometer Rotor Aerodynamics %A Santiago Pindado %A Javier P¨Śrez %A Sergio Avila-Sanchez %J Sensors %D 2012 %I MDPI AG %R 10.3390/s120506198 %X The influence of anemometer rotor shape parameters, such as the cupsĄŻ front area or their center rotation radius on the anemometerĄŻs performance was analyzed. This analysis was based on calibrations performed on two different anemometers (one based on magnet system output signal, and the other one based on an opto-electronic system output signal), tested with 21 different rotors. The results were compared to the ones resulting from classical analytical models. The results clearly showed a linear dependency of both calibration constants, the slope and the offset, on the cupsĄŻ center rotation radius, the influence of the front area of the cups also being observed. The analytical model of Kondo et al. was proved to be accurate if it is based on precise data related to the aerodynamic behavior of a rotorĄŻs cup. %K anemometer calibration %K cup anemometer %K cup aerodynamics %K rotor aerodynamics %U http://www.mdpi.com/1424-8220/12/5/6198