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Sensors 2012, 12(5), 6198-6217; doi:10.3390/s120506198

On Cup Anemometer Rotor Aerodynamics

* ,
IDR/UPM, ETSI Aeronáuticos, Universidad Politécnica de Madrid, Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
* Author to whom correspondence should be addressed.
Received: 20 March 2012 / Revised: 28 April 2012 / Accepted: 8 May 2012 / Published: 10 May 2012
(This article belongs to the Section Physical Sensors)
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The influence of anemometer rotor shape parameters, such as the cups’ front area or their center rotation radius on the anemometer’s 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 cups’ 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 rotor’s cup.
Keywords: anemometer calibration; cup anemometer; cup aerodynamics; rotor aerodynamics anemometer calibration; cup anemometer; cup aerodynamics; rotor aerodynamics
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Pindado, S.; Pérez, J.; Avila-Sanchez, S. On Cup Anemometer Rotor Aerodynamics. Sensors 2012, 12, 6198-6217.

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